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：短语辨析。A. 发生故障；失败 B.爆发 C. 打碎；结束 D.打断；闯入。句意：当他正在网上查找信息时，电脑系统突然出故障了。选A。