問題詳情

43. According to scientific researches, sighing is an automatic reflex human bodies have tokeep alveoli in our lungs working properly. Therefore, sighing is being defined as asurvival _________.
(A) patriotism
(B) mechanism
(C) utilitarianism
(D) organism

參考答案

答案:B
難度:簡單0.764706
統計:A(3),B(26),C(2),D(3),E(0)

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