单词：decreased virulence
单词：decreased virulence 相关文章
By Scott Stearns White House 03 May 2006 President Bush is instructing health officials to stockpile anti-viral drugs in preparation for a possible outbreak of Avian Flu. Scientists expect the flu to
2006年VOA标准英语（五月）
Researchers have developed an improved version of the smallpox vaccine that can be combined with a vaccine against anthrax. The dual vaccine represents a significant scientific achievement as well as a possible improved defense against biological att
VOA标准英语2010年(十)月
二、用于描写图表和数据 1. It has increased by three times as compared with that of 1998. 2. there is an increase of 20% in total this year. 3. It has been increased by a factor of 4since 1995. 4. It would be expected to increase 5 times. 5
四六级写作指导
To finish I'll just show you the strategy. 最后，我只跟你们说一下战略。 And this one I'm just using the interspecies molecule, but the logic is exactly the same. 在这里，我们只是使用跨菌种分子，但是思维逻辑是一模一
TED演讲教育篇
Amd of course, you've just heard and you already know that we're running out of antibiotics. 当然，你一定听说过，而且你早就知道了，我们快要没有有效的抗生素了。 Bacteria are incredibly multi-drug-resistant right now, a
TED演讲教育篇
Why this is interesting is because in the past decade we have found that this is not just some anomaly of this ridiculous, 这个发现之所以有趣，是因为在过去十年间，我们发现这种现象不只局限在这种古怪的、 glow-in-t
TED演讲教育篇