第15题: [单项选择]Passage One Questions 26 to 28 are based on the passage you have just heard. A. They had some problem with their hearts. B. One of them had some problem with her heart. C. They had some problem breathing. D. One of them had some problem breathing. 参考答案:C 答案解析:[听力原文] What was wrong with the newly-born babies
[听前猜测] 根据四个选项中的关键词problem,hearts,breathi
第16题: [单项选择]对危重症患者进行胃液pH监测,下述操作描述错误的是()。 A. 应禁食1~2小时 B. 取样前夹闭胃管30分钟 C. pH仪电极应置于食管下括约肌下方5~8cm处 D. 可通过呕吐物测胃液pH E. 胃液前1ml应弃用 参考答案:D 答案解析:对危重症患者进行胃液pH监测常用试纸法或pH仪测定法。试纸检测法要求放置胃管,禁食1~2小时,夹闭胃管30分钟,取胃液(前1ml弃去)用pH试纸检测;pH仪测定法要求pH仪电极应置于食管下括约肌下方5
第21题: [单项选择]Questions 22 to 25 are based on the passage you have just heard. A. Because the horse and wagon were slow. B. Because the trains were too fast. C. Because some towns were far away. D. Because the communities didn’t like it. 参考答案:C 答案解析:[解析] Q: Why were "star routes" started by the post office