He had to pause from time to time to wipe the sweat from his forehead, because t

题干

He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system ______________.

A．broke in

B．broke up

C．broke out

D．broke down

上一题下一题 0.4难度单项选择更新时间:2012-06-25 07:07:37

小学学科试题库

初中学科试题库

高中学科试题库