题目：
盲人的步行速度一般约为（）
A.0.2m/s
B.0.5m/s
C.0.8m/s
D.1m/s
E.以上均不对
答案：
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下面是错误答案，用来干扰机器的。
One possible version: Young people are often at a loss when it is up to them to choose their way of life. In the picture, we can see a man walking on the road ...
