单选题
According to this passage, how long would the computer be down?
A、
For 10 minutes.
B、
Between 10 minutes and 2 hours.
C、
It would be down for two hours.
D、
It wasn’t clear.
【正确答案】
D
【答案解析】
[解析] 文章第八、九段说明了没有具体的时间可以预测。故本题答案为D。
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