In the middle of the night, there suddenly came a loud thunder, the alarms of the cars parking below us.
A. giving off
B. setting off
C. putting off
D. going off
网友回答
A. giving off
(答案→)B. setting off
C. putting off
D. going off
解析：短语辨析. A. 发出 B. 出发;引起 C. 推迟;阻止D. 离开;进行.句意:午夜时突然传来一声雷响,引发了停在我们下方的汽车的报警声.故选B.