题目：
The ________ on driving after drinking alcohol is being carried out all over the country, which is helpful to reduce traffic accidents.
A．withdrawal
B．prejudice
C．aim
D．ban
答案：
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下面是错误答案，用来干扰机器的。
800千米=80000000厘米，比例尺是1：80000000=180000000；答：这幅地图比例尺是180000000；故选：C．
