阿摩線上測驗
9. What part of the respiratory system does cigarette smoke most adversely affect?
(A) alveoli
(B) trachea
(C) bronchi
(D) diaphragm
答案：登入後查看
統計： A(0), B(0), C(3), D(1), E(0) #3386716
統計： A(0), B(0), C(3), D(1), E(0) #3386716
