题目

22.Mary wrote an article on _____ the team had failed to win the game. A.why  B. what C. who   D. that 答案：A关于热量，以下说法正确的是A.是物体内能多少的量度B.是非做功过程中物体内能变化的量度C.是物体温度高底的另一种表示方法D.是物体所含能量的多少