As far as the woman is concerned why do only human beings and a few other primates laugh?

外语类 已帮助 人

As far as the woman is concerned, why do only human beings and a few other primates laugh?

A.That"s the result of evolution.

B.They are superior to other animals.

C.For the sake of survival.

D.The cause is not clear.

请帮忙给出正确答案和分析,谢谢!

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