第6题: [单项选择]风湿性二尖瓣狭窄出现急性肺水肿是由于() A. 肺静脉和肺毛细血管压升高 B. 肺小动脉痉挛造成肺动脉高压 C. 左心室排血量减少 D. 左心室充盈压升高 E. 体循环淤血、静脉压升高 参考答案:A
第7题: [单项选择]2级高血压,血压水平为()。 A. 收缩压140~149mmHg,舒张压90~99mmHg B. 收缩压160~179mmHg,舒张压100~109mmHg C. 收缩压150~159mmHg,舒张压90~109mmHg D. 收缩压170~189mmHg,舒张压90~109mmHg E. 收缩压160~179mmHg,舒张压109~119mmHg 参考答案:B
A. Few people owned the necessary equipment. B. The music selection was not very popular. C. Few ships came into New York harbor. D. The radio signal was too weak to reach a mass audienc 参考答案:A 答案解析:[听力原文]11-13 It was an Italian inventor who created the first wireless device for setting out