◎ 题干
I have many friends, _____ some are businessmen.

A. of them
B. from which
C. who of
D. of whom
◎ 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“I have many friends, _____some are businessmen. []A. of them B. from which C. who of D. of whom …”主要考查了你对  【关系代词】【介词和介词短语】【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。