将重型货物吊装到汽车车厢中部,货物放置稳定后与未装货物时相比

将重型货物吊装到汽车车厢中部,货物放置稳定后与未装货物时相比车胎内气体(假设轮胎隔热良好,不计气体分子势能)

A.温度升高,内能增大                  B.温度不变,内能增大

C.温度降低,内能减小                  D.温度不变,内能减小

 

答案

 

解析:

 

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