分) 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

分)

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

出自：中国石油大学- 《大学英语3》

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