問題詳情
38. 在正常心動週期 ( cardiac cycle ) 的心室射血期 ( ventricular ejection )，下列瓣膜變化何者正確？
(A) 半月瓣關閉、二尖瓣關閉
(B) 半月瓣打開、二尖瓣打開
(C) 半月瓣打開、二尖瓣關閉
(D) 半月瓣關閉、二尖瓣打開
(A) 半月瓣關閉、二尖瓣關閉
(B) 半月瓣打開、二尖瓣打開
(C) 半月瓣打開、二尖瓣關閉
(D) 半月瓣關閉、二尖瓣打開
參考答案
答案：C
難度：簡單0.789954
統計：A(19),B(17),C(346),D(56),E(0)
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