单词：attenuated toxin
单词：attenuated toxin 相关文章
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As long as there have been mice, people have sought a better mousetrap. And since we figured out that bacteria can make us sick, weve searched for better
Scientific American(十)月
This was a very shallow earthquake, which means it would tend to be more destructive. Stuart Sipkin, USGS Tuesday's earthquake hit Haiti hard, with extensive damage and many casualties. Compared to the well-known seismic areas like the Pacific Rim, t
VOA标准英语2010年(一月)
He smiled back, though, looking allured. Then he lifted one eyebrow and his voice was even huskier than before. 但他向我微笑着，显然已经上钩了。然后他挑起一侧眉头，声音变得比之前更为沙哑了。 Do you like scary st
暮光之城•暮色
There was no way she could come to terms with death; she lay night after night in a confused terror, trying to imagine if death was perpetual night, or an abyss of flames she had to jump over to reach the golden fields on the far side, or a sphere li
荆棘鸟
The second type of vaccine contains an attenuated virus. This virus is alive, but has been grown in the lab for several generations, so it isnt able to multiply very well in humans. With the attenuated virus multiplying very slowly, your body is able
英语时差8，16
How vain and foolish, then, thought I, 于是，我心里想， for timid untravelled man to try to comprehend aright this wondrous whale, by merely poring over his dead attenuated skeleton, stretched in this peaceful wood. 那些足不出户的胆小鬼
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