单选题：What did passengers do when the computer was down?

题目分类：公共英语三级
题目类型：单选题
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题目内容：

What did passengers do when the computer was down? A．They left home and went home．
B．They drank coffee and stared at the black screen.
C．They began to talk to each other．
D．None above．

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答案解析：

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