问题 单项选择题

患者,女,78岁,慢性咳嗽、咳痰20余年,近5年来活动后气急,1周前感冒后痰多,气急加剧,近2天嗜睡。化验:WBC18.6×109/L,中性0.9,动脉血pH7.29,PaCO280mmHg,PaO248mmHg。

若经药物治疗无效,患者自主呼吸停止,应立即给予

A.气管切开+机械通气
B.清理呼吸道
C.气管插管+机械通气
D.高浓度吸氧
E.体外心脏按压

答案

参考答案:C

阅读理解

阅读理解。

     Never try to work when you are very hungry. If youwant to do your homeworkright after school, you maywant to eat something before getting to work. (1) Alwaysdo your homework beforeyou get too tired. Don't wait till very late in theevening, or your homework will seem muchharder than it really is.  

     Break your time into a few parts if youhave more than an hour' s work, and giveyourself (2)a break after an hour. On the otherhand, (3) you should be able to work at leasthalf an hour at a time without stopping.      

     Don't put it off until the last minute. If youput off doing your homework, you will have iton your mind, and you won't enjoy your freetime so much. If you put it off until the end of aweek or until right before a test, you will havetoo much to do. A little each night, enough tokeep up with what is happening each day inschool, will take the fear out of tests and keep you on top of it.

1.Always do your homework before you get too  tired.  (改为同义句 )  

________ you get too tired, you should _______  doing your homework.

2.What's the meaning of "a break"?  

A. a sleep                  

B. an idea  

C. a rest                    

D. a moment

3.把(3)处句子翻译成汉语。

4. Which sentence is NOT true from this passage?    

A. Don't put off doing your homework.    

B. Don't wait till very late in the evening to do your homework.    

C. Eat something to keep yourself not hungry.    

D. Have a short break after working for more  than two hours.

5.选取文中的两个单词填空。  

(1) He has a good _______ to beat his dog.  

(2)1f you____  the rule, the teacher will  call your parents.

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