[单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. The woman’s source of information is reliable. B. He didn’t enjoy taking history with Dr. Parker. C. He thought Dr. Parker’s tests were easy. D. Dr. Parker is no longer teaching history.
参考答案:C 答案解析:[听力原文]
W: Tomorrow we are having our first test in my history class. I’m really worried about it. Y
第23题: [单项选择]关于COPD患者的家庭氧疗,叙述正确的是() A. 低浓度吸氧:氧流量2~4L/min B. 一昼夜不少于10小时 C. 夜间为避免影响休息,可间断、暂停吸氧 D. 使PaO2≥80mmHg,使SaO2>90% E. COPD以及慢性呼衰者提倡长期家庭氧疗 参考答案:E 答案解析:COPD的家庭氧疗要求低流量低浓度吸氧,氧流量1~2L/min;-昼夜至少15小时,夜间不间断;使PaO2≥60mmHg,使SaO2>90%;一般COPD患