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H7N9birdfluisavirus       canmakepeopledie.We’dbetterst...

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问题详情:

H7N9birdfluisavirus       canmakepeopledie.We’dbetterst...

H7N9 bird flu is a virus        can make people die. We’d better stay away from birds at present.

A. who               B. which               C. what               D. whom

【回答】

B

知识点:定语从句

题型:选择题