問題詳情
14. Why might unrelated individuals engage in altruistic acts?
(A) They are trying to mate with each other.
(B) It is possible they may mate with each other.
(C) The altruism is likely to be reciprocated.
(D) Individuals are part of the same large flock.
(E) None of these choices are correct.
(A) They are trying to mate with each other.
(B) It is possible they may mate with each other.
(C) The altruism is likely to be reciprocated.
(D) Individuals are part of the same large flock.
(E) None of these choices are correct.
參考答案
答案：C
難度：困難0.294118
統計：A(4),B(1),C(5),D(3),E(1)
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