It’s very dangerous to these viruses without any protection.A. be exposed toB. expose to

发布时间:2020-08-17 07:47:59

It’s very dangerous to      these viruses without any protection.
A. be exposed to
B. expose to
C. expose
D. be exposing to

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(答案→)A. be exposed to
B. expose to
C. expose
D. be exposing to
解析:句意:在没有任何保护措施的情况下,暴露于病毒下是非常危险的。是“被暴露”,故用被动语态,选A。
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