◎ 题干
We've tested one hundred types of boots, _______ is completely waterproof (防水的).
[     ]
A. none of them
B. none of which
C. no one of which
D. no one of them
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“We've tested one hundred types of boots, _______ is completely waterproof (防水的). [ ]A. none of them B. none of which C. no one of which D. no one of the…”主要考查了你对  【不定代词】【关系代词】【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。