阿摩線上測驗
43. According to scientific researches, sighing is an automatic reflex human bodies have to
keep alveoli in our lungs working properly. Therefore, sighing is being defined as a
survival _________.
(A) patriotism
(B) mechanism
(C) utilitarianism
(D) organism
答案：登入後查看
統計： A(8), B(155), C(7), D(23), E(0) #1595555
統計： A(8), B(155), C(7), D(23), E(0) #1595555
