3 房室瓣(AV valve)持續開啟於心臟週期之何時期?
(A)等容心室收縮期(isovolumetric ventricular contraction)
(B)心室射血期(ventricular ejection)
(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(88), B(118), C(191), D(302), E(0) #704688
統計: A(88), B(118), C(191), D(302), E(0) #704688