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—How did she get infected?

—She ____ the viruses without any protection.

A.exposed to

B.had exposed to

C.was exposed to

D.has exposed to

 

【答案】

C

【解析】

试题分析:考查固定词组。固定词组be exposed to…遭受..暴露…句意:—她怎么受到感染的?—她没有任何的保护,直接暴露在病毒之下。故C正确。

考点:考查固定词组

点评:对于固定词组,要在平时加强记忆和辨析。be exposed to…遭受..暴露…

 

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