阿摩線上測驗
58. Which of the following is the primary cause of the second heart sound (S2)?
(A) the closure of the atrioventricular (AV) valves at the beginning of systole
(B) the opening of the aortic and pulmonary valves during ventricular ejection
(C) the closure of the aortic and pulmonary valves at the beginning of diastole
(D) the rapid filling of the ventricles during early diastole
(E) the closing of the AV valves at the end of diastole
答案：登入後查看
統計： A(0), B(1), C(27), D(1), E(3) #3421163
統計： A(0), B(1), C(27), D(1), E(3) #3421163
詳解 (共 2 筆)
123
#7354042
心室收縮結束，心室舒張開始時，因主動脈瓣和肺動脈辦關閉而產生
0
0
