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问题 单项选择题

A、B两个人在距离为150千米的两城同时出发，相向而行，已知A速度为20千米/小时，B的速度为5千米/小时，由于出了意外，A在途中停下1个小时，那么两个人相遇时用了多少时间

A．6小时

B．5.8小时

C．6.8小时

D．7小时

答案

参考答案：C

单项选择题

Woman: I can't bear the air pollution in this city any more. It's getting worse and worse.Man: You said it. We've never had so many factories before.Question: What does the man mean

A．The air pollution is caused by the development of industry.

B．The city was poor because there wasn't much industry then.

C．The woman's exaggerating the seriousness of the pollution.

D．He might move to another city very soon.
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判断题

在道路上跟车行驶时，跟车距离不是主要的，只须保持与前车相等的速度，即可防止发生追尾事故。
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