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【问题1】急性心肌梗塞合并急性左心衰竭,首先选用哪种强心药? A西地兰;B多巴胺;C硝普钠;D硝酸甘油;E异丙肾上腺素。【问题2】慢性心房纤颤用洋地黄治疗中,心律突然变齐,可能性较小的是: A恢复窦性心律;B非阵发性交界性心动过速;
[Question 1] acute myocardial infarction with acute left heart failure, the first choice of cardiac medicine? A cedilanid; B dopamine; C nitroprusside; D nitroglycerin; E isoproterenol. Problem 2 Chronic atrial fibrillation with digitalis treatment, a sudden change in rhythm, the less likely are: A to restore sinus rhythm; B non-paroxysmal borderline tachycardia;