单选题：Some metals are better conductors of electricity than others

题目内容：
Some metals are better conductors of electricity than others, （　　）means that the former have atoms that contain more free electrons than the latter. A．that
B．this
C．it
D．which

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Pick me up at 8 o'clock. I （　　）my bath by then.

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分类：公共英语四级  题型：单选题
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