在探究“冰熔化时温度与时间的关系”实验中,把碎冰装在大试管中,将大试管放在盛有水的水槽中加热。水槽中的水用的是常温水而不用开水,这样做是为了 A.缓慢加热 B.均匀受热 C.增大受热面积 D.缩 短实验时间 答案:A ______ has recently been done to provide more buses for the people , a shortage of public vehicles remains a serious problem . A. That B. What C. Despite what D. Though what