The puter system suddently 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。break down“出故障”符合句意；break out“爆发”；break up“分解；拆散”；break in“ 闯入；打岔”均不合句意。