A:水沸腾时温度不变,说明沸腾过程不需要吸热
B:冰熔化时温度不变,内能不变
C:冰的升温比水快,说明冰的比热容比水小
D:图中DE段表示冰的熔化过程
Mr. Zhang can't speak French. _______, he had never learned French before he came to Paris.