Question

The computer system _____ suddenly while he was searching for information on the Internet.

A．broke down

B．broke out

C．broke up

D．broke in

Answer 1

A

动词短语辨析。A出故障,分解,瓦解；B爆发；C使粉碎；解散；结束；D闯入；句意：当我们在网上搜寻信息时，计算机系统突然出了故障。