第4题: [单项选择]女性,38岁。阵发性劳力性呼吸困难3年,咳痰带血丝1个月。超声心动图检查证实为二尖瓣狭窄,下列哪项体征具有诊断意义 A. 胸骨右缘第4肋间收缩期杂音 B. 心尖区3/6级收缩期杂音,向左腋下传导 C. 胸骨左缘第2肋间GrahamSteell杂音 D. 心尖区隆隆样舒张中、晚期杂音 E. 心尖区隆隆样舒张早期杂音 参考答案:D 答案解析:[解题思路]该例女性病人的心脏有器质性二尖瓣狭窄,有诊断意义的体征是心尖区隆隆样舒张中、晚期杂音,不是舒张早期。舒张早期杂音见于主动脉瓣关闭不全时引起的二尖瓣相对性狭窄出现的Austin-Flint杂
第6题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Be hostile to Nancy. B. Ask Nancy to come out. C. Talk to Nancy herself. D. Write Nancy a letter. 参考答案:C 答案解析:[听力原文]
M: I really want to know why Nancy is always so hostile toward me.
M: Did you ever think of