Statistics as well as a course in research methodology______all doctor candidates.A.is req

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Statistics as well as a course in research methodology______all doctor candidates.

A.is required of

B.are required of

C.is requiring with

D.are required by

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗

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  • 正确答案:A
    本题中aswellas…结构是附属结构作状语,其前的statistics(统计学)是以-s结尾的学科名,故使用单数的谓语动词;sth.isrequiredofsb.表示某物为某人所必需。