問題詳情
58.心動週期（cardiac cycle）中，房室瓣關閉時會產生下列何種結果？
(A)不會聽到心音
(B)第一心音
(C)第二心音
(D)第三心音
(A)不會聽到心音
(B)第一心音
(C)第二心音
(D)第三心音
參考答案
答案：B
難度：簡單0.763359
統計：A(20),B(200),C(27),D(2),E(0)
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