题目

As we grow older, birthdays seem to _______ more quickly than when we were children.   A. come in                B. come around                 C. come out              D. come over 答案：B使质量和初温都相同的铜和水，吸收同样多的热量后，将铜块放入水中，这时（　　）A．水向铜传递温度B．水向铜传递热量C．由铜向水传递热量D．铜和水之间不发生热传递