题目: 射血分数(ejection fraction) 编号: CAMJQQ

Elevated arterial blood pressure can cause () A: Prolonged ventricular isovolumic systolic period B: Prolonged ventricular rapid ejection period C: Prolonged ventricular slow ejection period D: Prolonged ventricular fast filling period E: Prolonged ventricular slow filling period

More and more people are taking to their bikes as a(n)______ to driving or using public transport. A: choice B: opportunity C: alternative D: ejection

The pressure inside the heart reaches its highest value at () A: End of atrial contraction B: End of isovolumetric contraction C: Rapid ejection phase D: End of isovolumetric relaxation E: End of ventricular filling

Like many of James’s novels, the storyis set in Europe, mostly England and Italy. This novel reflects James’interest in ______________. A: acism B: the differences between the New World and the Old C: the differences between the rich and the poo D: ejection and request

ejection fraction等于Stroke volume占某个容积的百分数。这个容积是, A: 回心血量 B: cardiac output C: 等容舒张期容积 D: 心室收缩末期容积 E: 心室舒张末期容积