9主動脈瓣(aorticvalve)關閉,發生在心臟週期之何時期?
(A)等容心室收縮期(isovolumetricventricularcontraction)
(B)心室射血期(ventricularejection)
(C)等容心室舒張期(isovolumetric ventricular relaxation)
(D) 心室充血期 (ventricular filling)
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統計: A(2), B(1), C(10), D(4), E(0) #2992696
統計: A(2), B(1), C(10), D(4), E(0) #2992696