题目

---- Do you have the time?    ---- Sorry, I have no watch.    ---- ________        A. What a pity!             B. Thanks anyway.        C. It doesn't matter.              D. Why not buy one? 答案:B下列说法正确的是(  ) A、布朗运动就是液体分子的无规则运动B、单晶体和多晶体都有规则的几何外形C、热量不可能自发地从低温物体传递给高温物体D、当两分子间距离增大时,分子引力增大,分子斥力减小
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