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物质的分子具有分子动能是由于·········································...

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物质的分子具有分子动能是由于·········································...

物质的分子具有分子动能是由于········································································ (   )

A.分子之间有间隙                          B.分子不停地做无规则运动

C.分子之间有相互作用的引力        D.分子之间有相互作用的斥力

【回答】

B

知识点:分子热运动

题型:选择题

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