单选题

Nowadays it is a well-known fact that second hand smoking does even more harm to human health.(2.0)

A 二手烟对人类健康危害十分巨大,这在今天已经是无可争辩的事实。

B 二手烟对人类健康的危害甚至更大,这在今天已是众所周知的事实。

C 今天大家都知道这样-个事实,二手烟对人类的危害已是不容置疑。

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正确答案：A （备注：此答案有误）

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