单选题：根据以下资料，回答题。Batteries Built by Viruses According to the firs

题目分类：理工类
题目类型：单选题
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题目内容：

根据以下资料，回答题。
Batteries Built by Viruses

According to the first paragraph，people try to__________. A．kill microorganisms related to chicken pox，the flu，etc
B．keep themselves away from viruses because they are invisible
C．stay away from viruses because they are causes of various diseases
D．cure themselves of virus—related diseases by taking medicines

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答案解析：

靖在第_____处填上正确答案。

靖在第_____处填上正确答案。A．at least B．at most C．at last D．at best

分类：理工类题型：单选题

（　　）with the picture. Mary tore it to pieces.

（　　）with the picture. Mary tore it to pieces.A．Dissatisfying thoroughly B．Being

分类：理工类题型：单选题

Mr. Smith advised us to withdraw （　　）.

Mr. Smith advised us to withdraw （　　）.A．so that to get not involved B．so as to g

分类：理工类题型：单选题

Don’t forget to walk the dog while I am away, （　　）.

Don’t forget to walk the dog while I am away, （　　）.A．can you B．shall you C．do yo

分类：理工类题型：单选题

That tree looked as if it （　　）for a long time.

That tree looked as if it （　　）for a long time.A．hasn’t watered B．didn’t water C．

分类：理工类题型：单选题