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  3. The story of J.B.S. Haldane is mentioned in the text ______. According the theory of kin selection, humans tend to act altruist

The story of J.B.S. Haldane is mentioned in the text ______. According the theory of kin selection, humans tend to act altruist

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问题 The story of J.B.S. Haldane is mentioned in the text ______.
According the theory of kin selection, humans tend to act altruistically ______.
选项 A、for the sake of desired reproduction.
B、out of self-interest.
C、on the request of natural selection.
D、because of kind nature.
答案B
解析
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考研英语一

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