The puter system suddenly while he was searching for information on the Internet.
A. broke down
B. broke out
C. broke up
D. broke in
网友回答
(答案→)A. broke down
B. broke out
C. broke up
D. broke in
解析：考查动词短语辨析。句意：他在网上搜索信息时，电脑突然坏掉了。A出毛病，分解；B爆发；C分裂，解散，放假；D打断，闯入，插嘴。故选A。