第7题: [单项选择]对诊断肥厚型梗阻性心肌病最有意义的是() A. 心电图出现深而宽的病理性Q波 B. 胸骨左缘第3~4肋间有响亮的收缩期杂音 C. 用力时心前区闷痛及晕厥史 D. 超声心动图发现舒张期室间隔左室后壁的厚度之比≥1.3,伴二尖瓣前叶收缩期前向运动 E. 可闻第三心音及第四心音 参考答案:D 答案解析:肥厚型梗阻性心肌病又称特发性肥厚性主动脉瓣下狭窄,病理改变为室间隔非对称性肥厚,导致左室流出道排血受阻,最有诊断意义的检查是超声心动图,显示室间隔非对称性增厚,室间隔的厚度和后壁之比≥1.3。
第12题: [单项选择]Questions 1 to 3 are based on the following conversation.Why did the woman suggest not giving everyone an extra day off so quickly A. There will still be much work. B. They don’t deserve it. C. A new project could appear. D. The financial analysis project can’t wait. 参考答案:C