问题 问答题

简述呼吸衰竭诊断要点。

答案

参考答案:1.临床表现造成呼吸衰竭的原发病本身的临床表现,在相应章节详细论述,此处从略。呼吸衰竭本身可造成患者出现呼吸困难的症状,但并非必然虽然吸氧能纠正潜在的低氧血症,但常不能缓解患者的症状。CO2:潴留可导致中枢神经系统症状,早期表现为高级神经活动如定向力、记忆力障碍;失眠、烦躁;随着CO2潴留加重则表现为嗜睡、间抽搐,甚至昏迷。

2.体格检查缺氧本身可导致发绀,C02潴留可导致浅表静脉充盈,皮肤红润潮湿,特别是表现在球结膜充血水肿;严重潴留时可出现腱反射减弱/消失,锥体束征阳性。

3.实验室检查动脉血气分析是诊断呼吸衰竭的唯一手段。应注意自然状态(不吸氧)下的血气结果才是用以诊断的有效数据。呼吸衰竭还可导致消化道出血,造成胃内容物和大便潜血阳性。

阅读理解

阅读理解。

     The computer is a very good machine. It can do a lot of everyday work so people can use it in many

ways. 

     Writers can use it to write interesting stories. Painters can use it to draw beautiful pictures. If you like

talking, you can talk to people from anywhere on the computer. You can watch movies and listen to music.

     Many children like playing games. Computers can help you. In the shop, someone buys something from

you. You can put the information about the sale (销售). Then the computer can work on the information and

tell you a report (报告) about shopping. In research (研究), if you want to know about the moon, you can

ask the computer and the computer can answer on the screen. In some large factories, you can't see many

people. Why not? Robots can do most of work instead of (代替) people. How does the robot work? The

computer tells it what to do.

     This is our computer. Perhaps one day the computer can think and feel. Then it will make our life better

and better.

1. We can _______ on the computer.

A. not play games

B. get real fruits

C. talk to anyone far away

D. find no information

2. You can't see many people in some large factories because _______.

A. computers can do anything

B. some robots help them

C. people all stay in the room

D. people work on the computer

3. Which of the following is NOT true?

A. People need computers' help

B. People have to use computers

C. Computers can do most of the work

D. Computers can think like people

4. From the passage we can know the word 'robot' means _______ in Chinese.

A. 机器人

B. 储存器

C. 打印机

D. 外星人

5. Which is the best title (标题)?

A. People's Lives

B. Computers

C. How Computers Work

D. The Importance of Computers

单项选择题 A1/A2型题