题目

I took my driving license with me on holiday,  ________ I wanted to hire a car. A. in case              B. even if C. ever since           D. if only 答案：A下面哪种情况下比热会发生变化（　　）A．一杯水倒掉一半B．水凝固成冰C．0℃的水变成4℃的水D．铁块加工成铁板