◎ 题干
There were two boys in the lab, _______ did the experiment successfully.
A.the clever of whomB.the cleverer of whom
C.the cleverer of themD.the more clever of them
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“There were two boys in the lab, _______ did the experiment successfully.A.the clever of whomB.the cleverer of whomC.the cleverer of themD.the more clever of the…”主要考查了你对  【限制性定语从句】【非限制性定语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。