第18题: [单项选择]患者,女。60岁,间断咳嗽、咳痰20年,加重伴呼吸困难3天。血气分析:pH7.35,PaO56mmHg.PaCO46mmHg。给予该患者鼻导管吸氧治疗。如需使用的吸氧浓度为29%,则其氧流量应调整为() A. 1.0L/min B. 1.5L/min C. 2.0L/min D. 2.5L/min E. 3.0L/min 参考答案:C 答案解析:吸入氧浓度(29)=21+4×氧流量。答案选C。
第33题: [单项选择]A:I don’’t know why we listen to George B:______ A. Look at the window and you’ll see. The kids were playing ball and Tommy failed to catch it. B. I’ll clean it. C. I’ll call the repair man. D. Can’t you find out 参考答案:A