You will hear a recording. Type the missing words in each blank.
你将听到一段录音。请在每个空格里打出缺失的单词。
0:07
So a virus is something that you can’t see by normal light microscopy, you need very advanced for electron microscopy to see it, but that virus is not able to reproduce itself without a host and us as human beings are made up of lots of different cell and we are interested in understanding at the molecular level how that virus infects the liver and why does it infect the liver and it doesn’t infect the heart or it doesn’t infect other .
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我的练习记录
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