Statistics as well as a course in research methodology______all doctor candidate

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

选项 A、is required of
B、are required of
C、is requiring with
D、are required by

答案 A

解析本题中as well as…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．is required of sb．表示某物为某人所必需。

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