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探究浮力大小的实验

> 从分子运动的观点看，物体受热膨胀的原因是 A.物体内各个分子体积变大 B.分子无规则振动加快，振动范围增大 C.物体各分子间挤进了空气 D.分子间斥力增大，分子间距离变大

问题：

发布时间：2020-03-13

从分子运动的观点看，物体受热膨胀的原因是

A.物体内各个分子体积变大
B.分子无规则振动加快，振动范围增大
C.物体各分子间挤进了空气
D.分子间斥力增大，分子间距离变大

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