8動脈瓣(Aortic valve )持續開啓於心臟週期之何時期?
(A)等容心室收縮(Isovolumetric ventricular contraction )
(B)心室射血(Ventricular ejection)
(C)等容心室舒張(Isovolumetric ventricular relaxation )
(D)心室充血(Ventricular filling )
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統計: A(81), B(360), C(90), D(51), E(0) #848284
統計: A(81), B(360), C(90), D(51), E(0) #848284