题目内容

下列关于物体的内能与做功、热传递关系的叙述,正确的是()

A. 对物体做功,物体内能一定增加
B. 向物体传递热量,物体内能一定增加
C. 必须同时对物体做功和传递热量,物体内能才能增加
D. 对物体做功,并向物体传递热量,物体内能一定增加

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