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患者男，75岁，因“咳嗽、咳痰、气促加重5天，昏迷30分钟”来诊。有慢性阻塞性肺疾病史。动脉血气分析：pH7.16，动脉血二氧化碳分压（PaCO2）105mmHg（1mmHg=0.133kPa），动脉血氧分压（PaO2）54mmHg。

此时的处理方法是（提示予改为辅助控制（A/C）模式后，出现气道峰压过高报警。）（）。

A.检查管路是否堵塞、扭曲

B.积极吸痰

C.解除支气管痉挛

D.适当镇静

E.改为压力支持通气（PSV）模式

F.改为压力调节容量控制（PRVC.模式

答案

参考答案：A, B, C, D, F

完形填空

Many people think teachers give pupils too __1__ homework. They say that it is __2__  (necessary) for children to work at home in their free time. __3__, they argue that most teachers do not properly plan the homework tasks they give to pupils. The results are __4__ pupils have to repeat tasks which they have already done at school.

Recently in Greece many parents complained about the difficult homework __5__ (give) to their children. The parents said that most of the homework was useless, and they wanted to stop it. Spain and Turkey are two countries which __6__ (stop) homework recently. In Denmark, Germany and several other countries in Europe, teachers cannot set homework at weekends. In Holland, teachers allow pupils to stay at school to do their homework. The children are free to help one __7__. Similar arrangement also exists in some British schools.

Most people agree that homework is not fair. A pupil who can do his homework in a quiet and comfortable room is in a much __8__ (good) position than a pupil who does his homework in a small, noisy room with the television __9__. Some parents are ready to help their children with their homework. But other parents even take __10__ interest at all in their children’s homework
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