题干
The computer system________suddenly while he was searching for information on the Internet.
A：broke up
B：broke away
C：broke out
D：broke down
答案(点此获取答案解析）
D
The computer system________suddenly while he was searching for information on the Internet.
A：broke up
B：broke away
C：broke out
D：broke down
，则
的值是 （ ）