We can separate the mixture into the pure chemical compounds______it is composed.

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问题 We can separate the mixture into the pure chemical compounds______it is composed.

选项 A、in which
B、of that
C、of which
D、from which

答案C

解析 Be composed of固定搭配,表示“由……组成”。本题考核由“介词+关系代词”引导的定语从句,只能用which,不能用that,所以选C。
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本试题收录于: 英语题库普高专升本分类
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