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铁证再次如山武汉病毒是基因技术设计的 2020-02-08 17:22:42

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    中国微生物学会病毒学专业委员会主任委员郭德银教授致辞

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现在,世界上每一个对冠状病毒进行基因组分析的病毒实验室都了解到,冠状病毒肯定是科学家人为设计的。证据就在病毒本身:用于基因插入的工具仍然存在于遗传密码中。由于这些独特的基因序列不是随机出现的,它们本身就证明了这种病毒是由实验室的科学家人为设计的。

然而,令全世界震惊不已的是,世界卫生组织和美国疾病管制与预防中心(CDC)为了保护共产中国和它的生化武器计划,却掩盖了真相,因为任何一个政府都不想让公众知道,政府实验室其实会经常爆发疫情。

例如,几十年前,美国陆军运营的埃博拉生物武器实验室里的一名科学家让一只猴子感染上埃博拉病毒。结果证明,这种毒株只能在猴子之间传染,不能传染给人类,世界因此躲了一劫。但美国陆军最终用化学炸弹“核化”了整个设施,杀死所有的猴子,把留在美国土地上的最后一点病毒残余也消灭得干干净净。

理查德·普雷斯顿(Richard Preston)的《危险地带》一书讲述的是,1989年,在美国弗吉尼亚州的莱斯顿的灵长类动物检疫所发现并控制了一种破坏性极强的热带丝状病毒,莱斯顿于是成了一场生化危机的中心。爆发的原因是,人们发现埃博拉病毒可以通过空气管道传播。这个故事令人毛骨悚然且广为人知,由于担心引起恐慌,被整个美国的医疗机构极力掩盖,直到很多年以后,曾经在疾控中心运输受感染的病人进了达拉斯医院,另一个受感染的护士造成了永久性肾损伤。

这些病毒泄露的实例是帮助我们了解中国的冠状病毒情况。在对待这次武汉冠状病毒问题时,我们必须首先认识到,病毒学研究实验室在控制病毒泄露方面经常出现失误,就连美国在研究致命的病毒毒株时也不能保证万无一失。中国的BSL-4实验室已发生过多次SARS病毒株的意外泄露。现在,这次武汉的新型冠状病毒已被确认为一种人工合成的毒株,目的是用来作为生化武器或疫苗试验。

病毒的基因组编码不是自然的。就像你永远不可能在沙漠中遇到一条正在写有着单词和语法的书的蛇那样,现在在冠状病毒株中发现的基因序列毫无疑问证明了,人类工程师一直在对这种病毒株进行增补。

用基因技术实现这个基因工程的手段之一叫做穿梭pShuttle,这种技术可携带大量基因插入目标病毒。

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

下图为pShuttle手段的完整基因序列:

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

用穿梭的办法在一篇题为“生成重组腺病毒的简化系统”的文章中有描述。

论文的摘要描述了“一种简化此类病毒的产生和生产的策略”。“这是实现病毒基因工程的过程:

重组腺病毒质粒是用最少的酶操作产生的,在细菌中使用同源重组,而不是在真核细胞中。将这些质粒转染到哺乳动物的包装细胞系后,在绿色荧光蛋白的帮助下,病毒的产生就可以很方便地进行,而绿色荧光蛋白是由整合到病毒主干中的基因编码的。同质病毒就可以从这个过程中获得,无需空斑纯化。

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

这篇论文描述了这种方法将如何“加速重组腺病毒的产生和测试过程”。

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

当然,在这个过程中,穿梭质粒会留下独特的代码,即基因改造的“指纹”。现在我们在冠状病毒中发现的就是这个指纹。

基因学研究人员James Lyons-Weiler在分析文章中揭示,在野外传播的冠状病毒中发现了穿梭基因代码。这证明了这种病毒是由人类科学家设计的。

“IPAK的研究人员发现了pshuttel – sn重组向量序列和INS1378之间的序列相似性,

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

另一个基因序列也显示与SARS冠状病毒的突刺蛋白有92%的匹配:

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

这个研究过程被中国研究人员申请了专利,如图所示。

穿梭质粒被用于将SARS基因插入冠状病毒,这一过程使其对人类具有致命性,“正在进行SARS疫苗研究的研究人员一再警告不要进行人体试验。

2019ncov的疾病进展与动物和人类接种SARS疫苗后再感染的进展一致。因此,必须认真考虑2019-nCoV是一种实验性疫苗类型的假设。

他还警告说,一些研究报告了动物(老鼠、雪貂和猴子)的严重免疫病理反应,在这些研究中,接种了冠状病毒疫苗的动物在随后接触到野生型冠状病毒时,往往有极高的呼吸衰竭率。

他的结论是:

如果中国政府一直在进行抗非典的人体试验。MERS或其他使用重组病毒的冠状病毒可能会使其公民在感染2019-nCoV冠状病毒后更容易患上急性呼吸窘迫综合征。

Lyons-Weiler并不是唯一一个评估冠状病毒基因工程起源的人。北京大学传染病博士董宇宏(音,Yuhong Dong)在《大纪元时报》上写道:

根据最近发表的科学论文,这种新型冠状病毒具有前所未有的病毒学特征,这表明建造它使用了基因工程。该病毒具有严重的临床特征,对人类构成巨大威胁。全世界的科学家、医生和人民,包括政府和公共卫生当局,必须尽一切努力调查这一神秘可疑的病毒,正本清源,最终保护人类的未来。

董教授提醒道,1月30日《柳叶刀》(Lancet)上的一篇科学论文的结论是,“重组可能不是这种病毒出现的原因。”换句话说,这不是通过自然突变在野外发生的。

他还提到1月27日由5名希腊科学家进行的一项研究,该研究的结论也是,在野外发现的“家谱”中,冠状病毒与其他病毒没有血缘关系。他写道:

5名希腊科学家们分析了2019 – ncov的遗传关系,发现“新冠状病毒中,几乎一半的基因组来自一个全新的没有密切遗传关系的亚属内sarbecovirus病毒家族”,这说明2019-nCoV是一种新型冠状病毒。研究者们否认了2019-nCoV源于不同冠状病毒之间随机自然突变的原始猜想。

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

董教授提到的在《柳叶刀》发表论文的Roujian Lu,是中国疾病预防控制中心国家病毒病预防控制所中国生物安全重点实验室的Roujian Lu

首先,该疫情于2019年12月下旬首次报告,当时武汉大部分蝙蝠物种都在冬眠。第二,华南海鲜市场没有出售或发现蝙蝠,只卖各种非水生动物(包括哺乳动物)。第三,2019-nCoV与其近亲属bat-SL-CoVZC45和bat-SL-CoVZXC21的序列一致性小于90%。因此,bat-SL-CoVZC45和bat-SL-CoVZXC21并不是2019-nCoV的直系祖先。

换句话说,2019-nCoV并非来自蝙蝠。这意味着整个主流媒体在冠状病毒的真正起源问题上对我们撒谎。

这篇论文还强调了官方解释中的错误信息,称“许多最初确认的2019-nCoV案例与武汉市场有关,但高达45%的案例(包括最早的几个案例)与武汉市场无关。”

Roujian Lu和赖恩斯-维勒都指出,SARS冠状病毒中存在一种结合蛋白序列,使其能够轻易感染人类细胞。如《大纪元》所述:

…尽管武汉冠状病毒和感染人的冠状病毒和整体低同源的武汉冠状病毒S蛋白有相当大的遗传距离武汉冠状病毒S蛋白有几个补丁受体结合(RBD)域的序列与SARS-CoV 的同源性高。据报道,SARS-CoV s蛋白中442、472、479、487和491位的残基位于受体复杂界面,被认为对SARS-CoV的跨物种和人际传播至关重要。所以令我们惊讶的是,尽管取代了5个重要的界面氨基酸残基中的4个,武汉CoV s蛋白被发现与人类ACE2具有显著的结合亲和力。… 武汉CoV s蛋白和SARS-CoV s蛋白在RBD域中具有几乎相同的三维结构,因此在相互作用界面上保持了相似的范德华和静电性质。因此,武汉CoV仍然能够通过S蛋白- ace2结合途径对人类传播造成重大公共卫生风险。

正如董博士问的那样,“这种新病毒怎么可能如此聪明,能够在特定位点发生精确突变,同时又能保持其与人类ACE2受体的结合亲和力?”病毒是如何改变s蛋白的四个氨基酸的?病毒知道如何使用有规律的聚集间隔的短回文重复(CRISPR)来确保这种情况发生吗?”换句话说,这不可能是偶然发生的。冠状病毒在野外并不是随机突变的,而是精心设计的。

世界各地的许多科学家目前正在对在冠状病毒中发现的基因序列进行研究,他们越来越多地认定,病毒的成分已经被改造。这些科学家中的许多人正受到威胁和审查。已经有一篇论文被迫撤回并修改,毫无疑问是为了删除冠状病毒基因工程起源的关键结论,但不能永远否认其人为精心设计的证据。

最终,科学机构肯定会这样的结论:这种冠状病毒株是被人为改造过的,或所有的遗传科学法则恰好都没有起作用,基因测序是虚构的(有点像“进步的”左派的变性论,他们已经放弃了生物学上的现实)。那么基因科学将面临这样的质疑:要么该冠状病毒是基因工程的产物,要么科学机构将不得不抛弃基因学已取得的全部研究成果。

到目前为止,他们还在试图欺骗公众,让他们相信这一切都是大自然的某种意外,这种宣传确实有用,因为大多数公众没有足够的科学知识来反驳官方的宣传。然而,世界各地有足够多的独立科学家证明,这次爆发的毒株是由人为设计的。

上周,每隔12个小时就会收到更新数据,有趣的是,就在此前的14个小时,所有官方的冠状病毒感染和死亡数字被冻结了,似乎世界上每个国家都同意停止报告新的数字,这种现象是前所未有的。与此同时,CDC目前确认了第11例冠状病毒感染病例,这表明尽管CDC在努力控制疫情,感染仍在继续蔓延。

原文链接

翻译报道:白夜

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By Mike Adams

(Natural News) Every virology lab in the world that has run a genomic analysis of the coronavirus now knows that the coronavirus was engineered by human scientists. The proof is in the virus itself: The tools for genetic insertion are still present as remnants in the genetic code. Since these unique gene sequences don’t occur by random chance, they’re proof that this virus was engineered by scientists in a lab.

But the WHO and CDC are covering up this inconvenient fact in order to protect communist China and its biological weapons program, since no government wants the public to know the full truth about how frequently government-run labs experience outbreaks. Decades ago, for example, the U.S. Army ran an Ebola bioweapons lab in the United States, where a monkey infected one of the scientists there. The strain turned out to be infectious only in monkeys, not humans, so the world dodged a bullet, but the U.S. Army “nuked” the entire facility with chemical bombs, killing all the monkeys and wiping out any last remnant of the virus on U.S. soil.

You can read the full details of that incident in the book The Hot Zone by Richard Preston. We’ve also covered it at NaturalNews.com, where this book description is reprinted:

In 1989, Reston, VA — one of the most famous U.S. planned communities located about 10 miles from Washington DC — stood at the epicenter of a potential biological disaster. This well-known story was narrated by Richard Preston in a bone chilling account related to the recognition and containment of a devastating tropical filovirus at a monkey facility — the Reston Primate Quarantine Unit.

That outbreak occurred because Ebola was found to be spreading through the air ducts, confirming that Ebola can spread through the air. This simple fact was vigorously covered up by the entire medical establishment during the Ebola scare in the United States many years later, where the CDC transported an infected patient to a hospital in Dallas, subsequently infecting a nurse who was treated with highly toxic chemicals that caused permanent kidney damage (she later sued the hospital for the damage she suffered).

The reason this is relevant is because in order to understand the coronavirus situation in China, we must first realize that virology research labs routinely experience lapses in containment. Even the United States has failed to contain deadly viral strains when trying to study them. China’s BSL-4 labs have experienced multiple accidental releases of SARS strains, and this new coronavirus is now confirmed to be an engineered strain that was either used in bioweapons research or vaccine experiments.

The genomic coding in the virus is not natural, in other words. Just as you would never encounter a snake in the desert that’s writing a book containing words and grammatical structure, the genetic sequences now identified in the coronavirus strain are, without question, proof that human engineers have been tinkering with the strain.

How to genetically engineer viruses: the pShuttle vector

One of the tools used to accomplish this genetic engineering is called pShuttle. It’s a genetic tool set that can carry a payload of genes to be inserted into the target virus.

Researchers engaged in genetic engineering can purchase the pShuttle sequence from online retailers such as AddGenes.org, which sells the sequence for $75, shipped in “bacteria as agar stab.”

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

The following map outlines the complete gene sequence of the pShuttle tool:

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

The method for using pShuttle is described in a PubMed document entitled, “A simplified system for generating recombinant adenoviruses.”

The summary of the paper describes, “a strategy that simplifies the generation and production of such viruses.” Here’s how the process works to achieve genetic engineering of viruses:

A recombinant adenoviral plasmid is generated with a minimum of enzymatic manipulations, using homologous recombination in bacteria rather than in eukaryotic cells. After transfections of such plasmids into a mammalian packaging cell line, viral production is conveniently followed with the aid of green fluorescent protein, encoded by a gene incorporated into the viral backbone. Homogeneous viruses can be obtained from this procedure without plaque purification.

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

The paper describes how this approach will, “expedite the process of generating and testing recombinant adenoviruses.”

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

During this process, of course, the pShuttle leaves behind unique code, a “fingerprint” of the genetic modification. It is this fingerprint that has now been identified in the coronavirus.

As revealed by genomics researcher James Lyons-Weiler in this bombshell analysis article, the pShuttle genetic code is found in the coronavirus that’s circulating in the wild.

This is proof that the virus has been engineered by human scientists.

“IPAK researchers found a sequence similarity between a pShuttle-SN recombination vector sequence and INS1378,” writes Lyons-Weiler for IPAK:

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

Another gene sequence also shows a 92% match with the Spike protein from the SARS coronavirus:

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

The process for achieving this was patented by Chinese researchers as shown in this patent link.

The pShuttle vector was used to insert SARS genes into the coronavirus, a process that makes it deadly to humans. “The very researchers conducting studies on SARS vaccines have cautioned repeatedly against human trials,” warns Lyons-Weiler:

The disease progression in of 2019-nCoV is consistent with those seen in animals and humans vaccinated against SARS and then challenged with re-infection. Thus, the hypothesis that 2019-nCoV is an experimental vaccine type must be seriously considered.

He also warns about, “studies that have reported serious immunopathology in animals – rats, ferrets, and monkeys – in which animals vaccinated against coronoviruses tended to have extremely high rates of respiratory failure upon subsequent exposure in the study when challenged with the wild-type coronavirus.”

He concludes:

If the Chinese government has been conducting human trials against SARS. MERS, or other coronviruses using recombined viruses, they may have made their citizens far more susceptible to acute respiratory distress syndrome upon infection with 2019-nCoV coronavirus.

Brighteon.com/a4d2afed-56c6-4602-b6ab-6f777ba4a69a

Another doctor from Beijing Medical University warns the virus appears to be genetically engineered

Lyons-Weiler is not alone in his assessment of the genetic engineering origins of the coronavirus. Dr. Yuhong Dong, who holds a doctorate degree in infectious diseases from Beijing University, writes in The Epoch Times:

Based on recently published scientific papers, this new coronavirus has unprecedented virologic features that suggest genetic engineering may have been involved in its creation. The virus presents with severe clinical features, thus it poses a huge threat to humans. It is imperative for scientists, physicians, and people all over the world, including governments and public health authorities, to make every effort to investigate this mysterious and suspicious virus in order to elucidate its origin and to protect the ultimate future of the human race.

Dr. Yuhong reminds us that a Jan. 30 science paper published in The Lancet concludes that, “recombination is probably not the reason for emergence of this virus.” In other words, this did not occur through natural mutations in the wild.

He also points to a Jan. 27th study by five Greek scientists who also concluded the coronavirus has no lineage to other viruses in the “family tree” that’s found in the wild. He writes:

A Jan. 27 2020, study by 5 Greek scientists analyzed the genetic relationships of 2019-nCoV and found that “the new coronavirus provides a new lineage for almost half of its genome, with no close genetic relationships to other viruses within the subgenus of sarbecovirus,” and has an unusual middle segment never seen before in any coronavirus. All this indicates that 2019-nCoV is a brand-new type of coronavirus. The study’s authors rejected the original hypothesis that 2019-nCoV originated from random natural mutations between different coronaviruses.

addgene-pshuttle-gene-sequence Irrefutable: The coronavirus was engineered by scientists in a lab using well documented genetic engineering vectors that leave behind a “fingerprint” [your]NEWS

“ No bats were sold or found at the         

   Huanan seafood market ”

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Dr. Yuhong writes about The Lancet study by authors Roujian Lu et al., from the China Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, repeating a quote from that paper:

First, the outbreak was first reported in late December 2019, when most bat species in Wuhan are hibernating. Second, no bats were sold or found at the Huanan seafood market, whereas various non-aquatic animals (including mammals) were available for purchase. Third, the sequence identity between 2019-nCoV and its close relatives bat-SL-CoVZC45 and bat-SL-CoVZXC21 was less than 90%. Hence, bat-SL-CoVZC45 and bat-SL-CoVZXC21 are not direct ancestors of 2019-nCoV.

In other words, it isn’t from bats.

That means the entire mainstream media is lying to us about the real origins of the coronavirus.

That same paper goes on to underscore the misinformation in the official explanation, stating, “Many of the initially confirmed 2019-nCoV cases—27 of the first 41 in one report, 26 of 47 in another—were connected to the Wuhan market, but up to 45%, including the earliest handful, were not. This raises the possibility that the initial jump into people happened elsewhere.”

Both Lu (in The Lancet paper linked above) and Lyons-Weiler point to the presence of a SARS binding protein sequence in the coronavirus that allows it to easily infect human cells. As explained in The Epoch Times:

…despite considerable genetics distance between the Wuhan CoV and the human-infecting SARS-CoV, and the overall low homology of the Wuhan CoV S-protein to that of SARS-CoV, the Wuhan CoV S-protein had several patches of sequences in the receptor binding (RBD) domain with a high homology to that of SARS-CoV. The residues at positions 442, 472, 479, 487, and 491 in SARS-CoV S-protein were reported to be at receptor complex interface and considered critical for cross species and human-to-human transmission of SARS-CoV. So to our surprise, despite replacing four out of five important interface amino acid residues, the Wuhan CoV S-protein was found to have a significant binding affinity to human ACE2. …The Wuhan CoV S-protein and SARS-CoV S-protein shared an almost identical 3-D structure in the RBD domain, thus maintaining similar van der Waals and electrostatic properties in the interaction interface. Thus the Wuhan CoV is still able to pose a significant public health risk for human transmission via the S protein–ACE2 binding pathway. (emphasis added)

As Dr. Yuhong asks, “How could this novel virus be so intelligent as to mutate precisely at selected sites while preserving its binding affinity to the human ACE2 receptor? How did the virus change just four amino acids of the S-protein? Did the virus know how to use Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) to make sure this would happen?”

It couldn’t happen by chance, in other words. The coronavirus is not a random mutation in the wild. It was engineered.

Many other scientists around the world are now investigating the gene sequences found in the coronavirus, and they are increasingly concluding that elements of the virus have been engineered.

Many of those scientists are being threatened and censored. One paper has so far been forced to be withdrawn and revised, no doubt to remove the key conclusions that point to the genetic engineering origins of the coronavirus, but the proof of its engineering cannot be denied forever.

Brighteon.com/0bddc3da-f590-445e-ac38-9a74e358a57c

Either the coronavirus was genetically engineered, or the science establishment is going to have to throw out the entire field of genomics research and claim it isn’t real

Eventually, the science establishment is either going to have to conclude that this coronavirus strain was engineered, or that all the laws of genetics science don’t work, and gene sequencing is imaginary (sort of like transgenderism by the “progressive” Left, which has already abandoned biological reality).

So far they’ve tried to bamboozle the public into believing this is all some sort of accident from Mother Nature, but that has only worked because most of the public doesn’t understand enough science to counter the official propaganda. However, there are more than enough independent scientists around the world to prove that this pandemic strain was engineered by humans. More evidence is coming out each day.

Interestingly, as this article is going to press, all the official numbers of infections and deaths from coronavirus have been frozen for about 14 hours and counting, almost as if every nation of the world has agreed to stop reporting new numbers. This may be a temporary situation that gets resolved in the next few hours, but it’s highly suspicious. For the last week, we’ve been getting new updates about every 12 hours or sooner, and we’ve never seen the count frozen for this long.

At the same time, an 11th case of coronavirus has now been confirmed by the CDC in the United States, revealing that infections are continuing to spread in the USA, despite the efforts of the CDC to contain the outbreak.

Stay informed. Read NaturalNews.com and watch more videos from thousands of channels at Brighteon.com.


https://yournews.com/2020/02/03/

1433704/irrefutable-the-coronavirus-

was-engineered-by-scientists-in-a-lab/


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作者:Pascal 留言时间:2020-02-10 14:32:17

http://blog.creaders.net/u/6942/202002/365715.html

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作者:Pascal 留言时间:2020-02-10 13:02:39

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Lab-Made Coronavirus Triggers DebateThe creation of a chimeric SARS-like virus has scientists discussing the risks of gain-of-function research.Nov 16, 2015JEF AKST

MERS coronavirusFLICKR, NIAID

Ralph Baric, an infectious-disease researcher at the University of North Carolina at Chapel Hill, last week (November 9) published a study on his team’s efforts to engineer a virus with the surface protein of the SHC014 coronavirus, found in horseshoe bats in China, and the backbone of one that causes human-like severe acute respiratory syndrome (SARS) in mice. The hybrid virus could infect human airway cells and caused disease in mice, according to the team’s results, which were published in Nature Medicine.

The results demonstrate the ability of the SHC014 surface protein to bind and infect human cells, validating concerns that this virus—or other coronaviruses found in bat species—may be capable of making the leap to people without first evolving in an intermediate host, Nature reported. They also reignite a debate about whether that information justifies the risk of such work, known as gain-of-function research. “If the [new] virus escaped, nobody could predict the trajectory,” Simon Wain-Hobson, a virologist at the Pasteur Institute in Paris, told Nature.

In October 2013, the US government put a stop to all federal funding for gain-of-function studies, with particular concern rising about influenza, SARS, and Middle East respiratory syndrome (MERS). “NIH [National Institutes of Health] has funded such studies because they help define the fundamental nature of human-pathogen interactions, enable the assessment of the pandemic potential of emerging infectious agents, and inform public health and preparedness efforts,” NIH Director Francis Collins said in a statement at the time. “These studies, however, also entail biosafety and biosecurity risks, which need to be understood better.”

Baric’s study on the SHC014-chimeric coronavirus began before the moratorium was announced, and the NIH allowed it to proceed during a review process, which eventually led to the conclusion that the work did not fall under the new restrictions, Baric told Nature. But some researchers, like Wain-Hobson, disagree with that decision.

The debate comes down to how informative the results are. “The only impact of this work is the creation, in a lab, of a new, non-natural risk,” Richard Ebright, a molecular biologist and biodefence expert at Rutgers University, told Nature.

But Baric and others argued the study’s importance. “[The results] move this virus from a candidate emerging pathogen to a clear and present danger,” Peter Daszak, president of the EcoHealth Alliance, which samples viruses from animals and people in emerging-diseases hotspots across the globe, told Nature.

https://www.the-scientist.com/news-opinion/lab-made-coronavirus-triggers-debate-34502

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作者:Pascal 留言时间:2020-02-10 10:29:20

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作者:Pascal 回复 老张 留言时间:2020-02-10 10:26:36

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http://blog.creaders.net/u/8994/202002/365706.html

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作者:老张 留言时间:2020-02-09 22:45:00

外行装内行或者内行里的半吊子,问的问题不会答还是不敢答?弄两篇英文文章上来糊弄外行,跟你在香港反送中运动中从完整的图中截图或者不同角度照片来蒙骗翻墙出来的大陆人一个德性。除了弄几张图出来影视五毛还有什么能耐?

给你看看美国的科学(Science)杂志发出来的东西看看,“The role of Huanan Seafood Wholesale Market in Wuhan, China, in spreading 2019-nCoV remains murky, though such sequencing, combined with sampling the market’s environment for the presence of the virus, is clarifying that it indeed had an important early role in amplifying the outbreak. The viral sequences, most researchers say, also knock down the idea the pathogen came from a virology institute in Wuhan.” 见于文章题目“

Mining coronavirus genomes for clues to the outbreak’s origins”----文章链接:https://www.sciencemag.org/news/2020/01/mining-coronavirus-genomes-clues-outbreak-s-origins

这是做了病毒基因序列分析和谱系对比的科学讲的。不懂分子生物学和病毒学,再不懂英文找谷歌翻译一下读读什么意思。科学问题被你给宗教化,蒙谁呢?科学就要把支持和反对的意见都亮出来去查明自己的观点,醒醒吧文科生!

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作者:Pascal 留言时间:2020-02-09 19:32:18

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Abstract

The discovery of SARS-like coronavirus in bats suggests that bats could be the natural reservoir of SARS-CoV. However, previous studies indicated the angiotensin-converting enzyme 2 (ACE2) protein, a known SARS-CoV receptor, from a horseshoe bat was unable to act as a functional receptor for SARS-CoV. Here, we extended our previous study to ACE2 molecules from seven additional bat species and tested their interactions with human SARS-CoV spike protein using both HIV-based pseudotype and live SARS-CoV infection assays. The results show that ACE2s of Myotis daubentoni and Rhinolophus sinicus support viral entry mediated by the SARS-CoV S protein, albeit with different efficiency in comparison to that of the human ACE2. Further, the alteration of several key residues either decreased or enhanced bat ACE2 receptor efficiency, as predicted from a structural modeling study of the different bat ACE2 molecules. These data suggest that M. daubentoni and R. sinicus are likely to be susceptible to SARS-CoV and may be candidates as the natural host of the SARS-CoV progenitor viruses. Furthermore, our current study also demonstrates that the genetic diversity of ACE2 among bats is greater than that observed among known SARS-CoV susceptible mammals, highlighting the possibility that there are many more uncharacterized bat species that can act as a reservoir of SARS-CoV or its progenitor viruses. This calls for continuation and expansion of field surveillance studies among different bat populations to eventually identify the true natural reservoir of SARS-CoV.

Introduction

Severe acute respiratory syndrome coronavirus (SARS-CoV) is the aetiological agent responsible for the SARS outbreaks during 2002–2003, which had a huge global impact on public health, travel and the world economy [4, 11]. The host range of SARS-CoV is largely determined by the specific and high-affinity interactions between a defined receptor-binding domain (RBD) on the SARS-CoV spike protein and its host receptor, angiontensin-converting enzyme 2 (ACE2) [6, 7, 9]. It has been hypothesized that SARS-CoV was harbored in its natural reservoir, bats, and was transmitted directly or indirectly from bats to palm civets and then to humans [10]. However, although the genetically related SARS-like coronavirus (SL-CoV) has been identified in horseshoe bats of the genus Rhinolophus [5, 8, 12, 18], its spike protein was not able to use the human ACE2 (hACE2) protein as a receptor [13]. Close examination of the crystal structure of human SARS-CoV RBD complexed with hACE2 suggests that truncations in the receptor-binding motif (RBM) region of SL-CoV spike protein abolish its hACE2-binding ability [7, 10], and hence the SL-CoV found recently in horseshoe bats is unlikely to be the direct ancestor of human SARS-CoV. Also, it has been shown that the human SARS-CoV spike protein and its closely related civet SARS-CoV spike protein were not able to use a horseshoe bat (R. pearsoni) ACE2 as a receptor [13], highlighting a critical missing link in the bat-to-civet/human transmission chain of SARS-CoV.

There are at least three plausible scenarios to explain the origin of SARS-CoV. First, some unknown intermediate hosts were responsible for the adaptation and transmission of SARS-CoV from bats to civets or humans. This is the most popular theory of SARS-CoV transmission at the present time [10]. Second, there is an SL-CoV with a very close relationship to the outbreak SARS-CoV strains in a non-bat animal host that is capable of direct transmission from reservoir host to human or civet. Third, ACE2 from yet to be identified bat species may function as an efficient receptor, and these bats could be the direct reservoir of human or civet SARS-CoV. Unraveling which scenario is most likely to have occurred during the 2002–2003 SARS epidemic is critical for our understanding of the dynamics of the outbreak and will play a key role in helping us to prevent future outbreaks. To this end, we have extended our studies to include ACE2 molecules from different bat species and examined their interaction with the human SARS-CoV spike protein. Our results show that there is great genetic diversity among bat ACE2 molecules, especially at the key residues known to be important for interacting with the viral spike protein, and that ACE2s of Myotis daubentoni and Rhinolophus sinicus from Hubei province can support viral entry.

https://link.springer.com/article/10.1007%2Fs00705-010-0729-6

LetterPublished: 04 April 2018Fatal swine acute diarrhoea syndrome caused by an HKU2-related coronavirus of bat originPeng Zhou, Hang Fan, […]Jing-Yun Ma

Nature volume 556, pages255–258(2018)Cite this article

26k Accesses

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This article has been updated

Abstract

Cross-species transmission of viruses from wildlife animal reservoirs poses a marked threat to human and animal health1. Bats have been recognized as one of the most important reservoirs for emerging viruses and the transmission of a coronavirus that originated in bats to humans via intermediate hosts was responsible for the high-impact emerging zoonosis, severe acute respiratory syndrome (SARS)2,3,4,5,6,7,8,9,10. Here we provide virological, epidemiological, evolutionary and experimental evidence that a novel HKU2-related bat coronavirus, swine acute diarrhoea syndrome coronavirus (SADS-CoV), is the aetiological agent that was responsible for a large-scale outbreak of fatal disease in pigs in China that has caused the death of 24,693 piglets across four farms. Notably, the outbreak began in Guangdong province in the vicinity of the origin of the SARS pandemic. Furthermore, we identified SADS-related CoVs with 96–98% sequence identity in 9.8% (58 out of 591) of anal swabs collected from bats in Guangdong province during 2013–2016, predominantly in horseshoe bats (Rhinolophus spp.) that are known reservoirs of SARS-related CoVs. We found that there were striking similarities between the SADS and SARS outbreaks in geographical, temporal, ecological and aetiological settings. This study highlights the importance of identifying coronavirus diversity and distribution in bats to mitigate future outbreaks that could threaten livestock, public health and economic growth.

Main

The emergence of SARS in southern China in 2002, which was caused by a previously unknown coronavirus (SARS-CoV)11,12,13,14,15 and has led to more than 8,000 human infections and 774 deaths (http://www.who.int/csr/sars/en/), highlights two new frontiers in emerging infectious diseases. First, it demonstrates that coronaviruses are capable of causing fatal diseases in humans. Second, the identification of bats as the reservoir for SARS-related coronaviruses, and the fact that SARS-CoV3,4,5,6,7,8,9,10 probably originated in bats, firmly establishes that bats are an important source of highly lethal zoonotic viruses, such as Hendra, Nipah, Ebola and Marburg viruses16.

Here we report on a series of fatal swine disease outbreaks in Guangdong province, China, approximately 100 km from the location of the purported index case of SARS. Most strikingly, we found that the causative agent of this swine acute diarrhoea syndrome (SADS) is a novel HKU2-related coronavirus that is 98.48% identical in genome sequence to a bat coronavirus, which we detected in 2016 in bats in a cave in the vicinity of the index pig farm. This new virus (SADS-CoV) originated from the same genus of horseshoe bats (Rhinolophus) as SARS-CoV.

From 28 October 2016 onwards, a fatal swine disease outbreak was observed in a pig farm in Qingyuan, Guangdong province, China, very close to the location of the first known index case of SARS in 2002, who lived in Foshan (Extended Data Fig. 1a). Porcine epidemic diarrhoea virus (PEDV, a coronavirus) had caused prior outbreaks at this farm, and was detected in the intestines of deceased piglets at the start of the outbreak. However, PEDV could no longer be detected in deceased piglets after 12 January 2017, despite accelerating mortality (Fig. 1a), and extensive testing for other common swine viruses yielded no results (Extended Data Table 1). These findings suggested that this was an outbreak of a novel disease. Clinical signs are similar to those caused by other known swine enteric coronaviruses17, 18 and include severe and acute diarrhoea and acute vomiting, leading to death due to rapid weight loss in newborn piglets that are less than five days of age. Infected piglets died 2–6 days after disease onset, whereas infected sows suffered only mild diarrhoea and most sows recovered within two days. The disease caused no signs of febrile illness in piglets or sows. The mortality rate was as high as 90% in piglets that were five days or younger, whereas in piglets that were older than eight days, the mortality dropped to 5%. Subsequently, SADS-related outbreaks were found in three additional pig farms within 20–150 km of the index farm (Extended Data Fig. 1a) and, by 2 May 2017, the disease had caused the death of 24,693 piglets at these four farms (Fig. 1a). In farm A alone, 64% (4,659 out of 7,268) of all piglets that were born in February died. The outbreak has abated, and measures that were taken to control SADS included separation of sick sows and piglets from the rest of the herd. A qPCR test described below was used as the main diagnostic tool to confirm SADS-CoV infection.

https://www.nature.com/articles/s41586-018-0010-9

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作者:老张 留言时间:2020-02-09 19:31:19

你在传播与科学相关的问题,理论上应该总结出点东西给读者,在网上发的东西应该经得起推敲。比方说,你文中列出的英文大部分是吓唬人,跟你表达你的观点的内容极少。这个网上真懂这个的华人不少,如果自己不懂建议你不要因为支持自己的政治观点和倾向而发科学相关的博文。发了文,你就有责任和义务给读者解释。科研本身就是在不断提问和质疑中发展的。不是说新冠状病毒不可以人工改造过,你在表达一个观点时不应掩盖反对观点。不论持有什么政治观点,都应该尊重科学。问你的问题不回答,拿出一堆东西说明什么?断章取义,误导外行么?

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作者:Pascal 留言时间:2020-02-09 19:12:22

 第二,实验室的修改变异

  接着讲,为什么高福院士能越过中间宿主直接找到2019-nCoV的源头蝙蝠身上呢?唯一的依据就是拥有大量的蝙蝠病毒的大数据库。

  好吧,到这里终于追到石正丽研究员这里了,看看石正丽这些年的研究成果和工作,她的数据库里拥有不少于50中以上的冠状病毒,没有这个蝙蝠冠状病毒的数据库,高福院士是不可能在很快就筛选出蝙蝠这个宿主的。

  所以2019-nCoV的原始病毒,保存在石正丽的病毒库里。

  2、好吧,让我们再看一下冠状病毒这个紫色的小蘑菇,人为的换掉它,难吗?不难啊,如果你不会换这个,那根本不是学生物的,可以这么说吧,中国80%的生物研究生都会,武汉大学的生物学研究所随便挑几个学生都会换掉,因为导师很厉害。别说饶博士领导的北大生命科学院,对研究生物的研究生来说,如果不会,就没法拿毕业证。

  操作过程就不必讲了,是一种体力活。

  3、新冠病毒是如何传播的

  好吧,拿到或者换掉冠状病毒的紫色小蘑菇丁之后,实验室接着要做什么呢?当然是要把病毒种在新的宿主身上啊,记录这些病毒宿主的一些列生化指标和传播途径。

  这些宿主是什么呢?那就是实验室的实验动物了,他们真的非常可能,不亚于水深火热的患者,我们称这些动物为SPF动物。

  我还养过SPF动物,哎,我真为自己身为人类而感到羞愧和深深的忏悔,即使我终身食素,也无法摆脱这种忏悔的心理,何况是身在水生火热疫区的那些可怜的病患,每每想到这些,我就能想到那些在笼子里同样有灵魂的生灵。

  那么,一种被修改了S蛋白的病毒,在宿主之间传播,这里的宿主变成了可选择的SPF动物——小鼠、大鼠、和猴子。

  病毒传播的方式常见的有集中,1.飞沫传播,比如流感病毒 2. 血液传播 比如艾滋病病毒 3. 母婴传播,比如乙肝病毒。

  那么这时候科学家,其实是实验员在修改病毒的时候,就会选择病毒和宿主的那段蛋白以决定传播方式。

  好吧,这就是考验科学家良心和利益的时候了,如果选择了母婴方式传播,即使是繁殖最快的小鼠,等小鼠成熟怀孕,也要22天为一个孕育的周期,鸡也要21天孵化。选择血液传播比较危险,如果操作不当很容易污染。

  那么为了尽快的出成果,一般会选择最快的传播方式,呼吸道传播了,世界卫生组织公布的数据:

  2019-nCoV通过人体呼吸道和肺部细胞上的ACE2(血管紧张素转化酶2)蛋白受体入侵人体的。患者刚开始的时候一般是以发热、乏力、干咳为主要表现,但是鼻塞、流涕等。

  那么,病毒是怎么准确无误的选择到这个人体的开关呢?下面的论文是详细介绍了这个过程,而这篇论文,石正丽恰恰是作者之一:

  https://www.nature.com/articles/nm.3985?fbclid=IwAR0iTTfDlT-uxNFPtvQH-xFrF6QaF1hKE1Ey2TPrEi17XfFUElbpUlAosDc

  2015年,著名的自然医学电子刊物上发表了一篇论文,主要作者为中国科学院武汉病毒学研究所、武汉大学病毒研究所教授石正丽。

  这篇论文说,他们医学研究发现,只要把蝙蝠身上的S蛋白里的ACE2这个受体开关一调,这个病毒马上就可以传染给人类。利用病毒基因重组技术将蝙蝠的S蛋白和小老鼠的Sars病毒重组,得到的新病毒可以和人体的血管紧张素转化酶2(ACE2)结合,能很有效地感染人类的呼吸道细胞,毒性巨大。他们发现新病毒明显地损害了老鼠的肺部,所有疫苗管失去作用。于是,石正丽团队继续用猴子做实验,模拟病毒在人体上的效果。

  这个实验当时引起美国医学界非常大的争议,医学专家Declan Butler也在Nature Medicine上撰文表示,这种实验没有什么意义,而且风险很大。由于缺乏技术,当时石正丽团队是和美国北卡罗莱纳的一个医学小组合作。2014年美国疾病控制中心意识到这个病毒有可能成为生物化学武器时,立刻已经叫停了这种病毒改造计划,并停止拨款给相关的研究。

  开展这种研究,肯定存在很大风险,所以下面的链接是质疑的文章:

  https://www.nature.com/news/engineered-bat-virus-stirs-debate-over-risky-research-1.18787?fbclid=IwAR3DUjcRIlGF5_d6XOS4mm_ZlzWUwgGaHZZPYVp3_UaznsQWsftDU5EVQDY#/ref-link-2

  好吧,我和石正丽研究员的对质,基本就到这里了,石研究的实验室员拥有2019-nCoV原始的以蝙蝠为宿主的病毒样本以及冠状病毒的数据库,也掌握了改造成为2019-nCoV的方法,我的话就就到这里,至于过程,我没有见到,不分析。

  这个新病毒,本来永远封存在保险级别的最高的实验室的,封存或者永远销毁,但是很不幸,它逃脱了,造成了几万人的感染,几百人的死亡,这个罪魁祸首我们虽然看见它了,抓住它了,但是我们还没有销毁它消灭它。为此无数的医生和救援人员奔赴一线参与救援,那才是石正丽研究员说的以命担当。

http://m.szhgh.com/show.php?classid=50&id=222546

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作者:Pascal 留言时间:2020-02-09 18:54:54

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作者:老张 留言时间:2020-02-09 18:28:25

1) pShuttle序列里一百多个碱基是你所谓的fingerprint? 只有这个载体里有才有这个序列?质粒里的序列大都是科学家从病毒或细菌得到的,没有谁那么聪明设计出来。换句话说,你的fingerprint一定早在病毒/细菌身上发现了;

2)Spike是冠状病毒表面的刺儿,这类病毒都有,SARS也有。不同病毒都有这种蛋白,但是序列有差异/变异,有什么奇怪的?

3)武汉要搞SARS疫苗,如果想用Spike蛋白序列,制造突变的Spike蛋白有什么用?比较新冠肺还没有出来。

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作者:Pascal 回复 天雅 留言时间:2020-02-09 17:26:36

谢天雅博。见过这个25秒视频,如临生化武器刚刚使用过的战场。

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作者:天雅 留言时间:2020-02-09 14:19:15
给博主加个美国撤侨的印证视频。
https://mobile.twitter.com/jenniferatntd/status/1225631838435078144?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1225631838435078144&ref_url=https%3A%2F%2Fwww.aboluowang.com%2F2020%2F0209%2F1407298.html
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作者:peter98 留言时间:2020-02-09 07:35:22

呵呵。怕死客,咱也被你说服了。通常叫“铁证如山”,如今叫“铁证再次如山”,接下来可就是你的名片上的军官下来要说“铁证重复如山”,那可就是真理。

有一点,不管是有意还是无意,去年喧嚣一时的港灿的黑口罩不见了,黑防护服不见了,黑眼睛护照不见了,开春上班一定会死灰复燃的集会示威推迟了。这至少说明香港人也怕死。那种为自由的呼吸誓死如归的勇武精神也纯属用来忽悠混狗粮款的。

另外京广线北上的列车里撕心裂肺的后续故事也没了,你不能总是玩售后不管吧?那些被送往湖北的优秀的香港儿女如今在哪里?都集中被消灭于冠状病毒肺炎,那才是你应该跟进的基因设计的主要理由吧?

回复 | 0
作者:Pascal 留言时间:2020-02-08 20:23:12

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回复 | 1
作者:Pascal 留言时间:2020-02-08 19:40:05

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https://www.youtube.com/watch?v=z3bshjtqWMY&feature=emb_logo

https://twitter.com/manchu19320301/status/1226144342810607616

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