◎ 题干
The new buyer identified a dozen new sources for the material, ___________ proved to be reliable.
A.most of themB.most of whichC.most of whomD.most of those
◎ 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“The new buyer identified a dozen new sources for the material, ___________ proved to be reliable.A.most of themB.most of whichC.most of whomD.most of those…”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。