第7题: [单项选择]狭义艾森曼格综合征是指 A. 室间隔缺损左向右分流 B. 房间隔缺损右向左分流 C. 动脉导管未闭双向分流 D. 继发性肺动脉高压,心室水平出现双向分流或右向左分流 E. 小室缺右向左分流 参考答案:D 答案解析:室间隔缺损所致心内左向右分流及分流量的多少是病理生理的基础,肺动脉高压时,右室压力升高,收缩期左向右分流速度降低,分流量减少,右室舒张压升高,室水平发生双向分流称艾森曼格综合征。
第17题: [单项选择]位错属于()缺陷。 A. 点缺陷 B. 线缺陷 C. 面缺陷 D. 体缺陷 参考答案:B
第18题: [单项选择]What do we know from the conversation A. Both the man and the woman were late. B. Neither the man nor the woman was late. C. The man was late while the woman was on time. 参考答案:A 答案解析:[听力原文]
M: Sorry to have kept you waiting. The train was half an hour late.
W: Don’t worry about it