本题目来源于试卷: Form and Function B.7 Transport，类别为 IB生物学
[单选题]
What is the positionyyixlb:1)z1 xhr60 : qx3n6en8arzmy ofbmocz.vc:i 1 +becy67 the atrioventricular and semilunar valves at the point in the cardiac cycle at which the pressure in the left ventricle cbi z+o y:.17cbec6mvis the greatest?
A. Atrioventricular is open;Valves Semilunar Valves is open
B. Atrioventricular is open;Valves Semilunar Valves is closed
C. Atrioventricular is closed;Valves Semilunar Valves is open
D. Atrioventricular is closed;Valves Semilunar Valves is closed
参考答案: C
本题详细解析:
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