The World Health Organization has given some advice onto protect us from being infected(感染) with H7N

题目简介

The World Health Organization has given some advice onto protect us from being infected(感染) with H7N

题目详情

The World Health Organization has given some advice on        to protect us from being infected(感染) with H7N9.
A.howB.whatC.whereD.when
题型:单选题难度:中档来源:不详

答案

A
how怎样,what什么;where在哪儿;when什么时候。句意:世界卫生组织给了一些关于如何保护我们不感染h7n9病毒的建议。结合语境可知选A。

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