下列说法正确的是:                               

下列说法正确的是:                                                                                                  

       A.布朗运动是液体分子的无规则运动

       B.液体很难被压缩的原因是当液体分子的距离减小时,分子间的斥力增大,分子间的引力减小,所以分子力体现为斥力

       C.第二类永动机不可能制成的原因是违反了能量守恒定律

       D.对于一定质量的理想气体,在体积增大的同时,压强也有可能增大

答案

D

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D   
D   

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