The computer system broke _____ suddenly while he was searching for information

题干

The computer system broke _____ suddenly while he was searching for information on the Internet．

A．down

B．out

C．up

D．in

上一题下一题 0.64难度单项选择更新时间:2010-12-17 02:40:23

小学学科试题库

初中学科试题库

高中学科试题库