第13题: [单项选择]患者,女性,42岁。做下肢静脉瓣膜功能试验,先平卧,抬高患肢,待曲张静脉淤血排空后,在大腿根部扎止血锥,患者站立后松开止血带,曲张静脉由上而下迅速充盈,说明哪处瓣膜功能不全() A. 大隐静脉 B. 小隐静脉 C. 深静脉 D. 交通支 E. 浅静脉 参考答案:A 答案解析:大隐静脉瓣膜功能:检查时,先让患者平卧,下肢抬高,使下肢静脉排空,在大腿根部绑扎止血带,压迫大隐静脉,然后让患者站立,立即松开止血带,若曲张静脉自下而上逐渐充盈时间超过30秒,提示大隐静脉瓣膜功能正常
第27题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard. A. John was prevented from going fishing. B. Jimmy got sick from eating too many grapes. C. They stayed with the wife’s cousin. D. They had some trouble with their automobile. 参考答案:D 答案解析:[听力原文] What occurred in Phoenix,Arizona