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题解1.粥样硬化可累及冠状动脉中的任何1支,也可2支、3支甚或4支同时受累,其中以左前降支最多见,病变也最重,故临床上常见为急性前壁心肌梗塞。然后依次为右冠状动脉、左回旋支和左冠状动脉主干,答案为B。2.心电图检查是诊断心肌梗塞和心绞痛的重要依
Interpretation 1. Atherosclerosis can involve any one of the coronary artery, but also 2, 3 or even 4 at the same time involved, of which the most common left anterior descending artery, the most serious lesions, it is clinically common acute anterior wall Myocardial infarction. Then the right coronary artery, left circumflex artery and left main coronary artery, the answer is B. 2. ECG is an important basis for the diagnosis of myocardial infarction and angina