问题
单项选择题
关于钙通道拮抗剂治疗心绞痛的主要机制，下列哪项不正确
A．抑制心肌收缩，减少心肌氧耗
B．减慢心率，减少心肌作功
C．降低血液黏度，抗血小板聚集
D．解除冠状动脉痉挛，改善心内膜下心肌的供血
答案
参考答案：C
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关于钙通道拮抗剂治疗心绞痛的主要机制，下列哪项不正确
A．抑制心肌收缩，减少心肌氧耗
B．减慢心率，减少心肌作功
C．降低血液黏度，抗血小板聚集
D．解除冠状动脉痉挛，改善心内膜下心肌的供血
参考答案：C
Dad loved children. And he always wanted a 1 family. Eventually, he got what he wanted with twelve children in the family. Without fail, he would show us all to visitors. Once, Dad 2 presented the first three children in the family, Ann, Mary and Ernestine, to some visitors. Then he picked up a fourth child, and said, “And this is our 3 model, complete with all the improvements. And don’t think that this is all, we are 4 the 1953 model some time next month.” But what he 5 most was taking us out for a drive. On one occasion a man in a village we were passing through shouted 6 that he had seen eleven people in our car, not 7 Mum and Dad. 8 , Dad called out over his shoulder, “You 9 the second baby up from the front here, Mister.” Another time, Dad told us this joke, though we were not sure whether he was telling us the 10. Mum, who was a psychologist, once went to give a lecture and left Dad in charge of the 11 . When Mum returned, she asked him if everything had been OK. He said everything was 12 except that one of the children had been taught a lesson because he had been 13 . When he pointed at the child that had been 14 Mum looked at him calmly and said, “That’s not one of ours, dear. He 15 next door.”
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