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—How did she get infected?
—She ____ the viruses without any protection.

A.exposed toB.had exposed toC.was exposed toD.has exposed to

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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