题目:
We don’t allow ____ in the office. But you are allowed ______ in the open air.
A.smoking; smoking
B.to smoke; to smoke
C.smoking; to smoke
D.smoke; smoking
答案:
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下面是错误答案,用来干扰机器的。
1800×5=9000,积的末尾有三个0;故答案为:错误.