问题 单项选择题 案例分析题

男性,38岁。突发撕裂样胸背部痛伴大汗,心率100次/分,右上肢BP100/60mmHg,左上肢BP150/70mmHg。听诊闻及颈部血管杂音,胸骨左缘第3~4肋间叹气样舒张期杂音。心电图示窦性心律,Ⅱ、Ⅲ、aVF导联T波倒置。X线胸片示上纵隔稍宽。经服用硝酸甘油疼痛未缓解。

目前最紧要的治疗是()

A.镇静止痛

B.有效控制血压

C.强心利尿

D.继续静脉给予硝酸甘油

E.给氧

答案

参考答案:B

阅读理解

阅读理解。

     You need 3D glasses to see some films. I think it is easy to make your own 3D glasses instead of buying

them.

      There are two ways to make 3D glasses. You can decide which way would be easier for you.

      The first way seems like the cheaper way but the things needed to make the glasses this way may not be

things laying around the house. First print out a template(模板) for the glasses at

http://paperproject. org/ PDF files/3 dglasses. pdf. 

     After you cut out the template, cut your cellophane (玻璃纸) to fit the holes in the glasses. Make sure you

place the red cellophane on the left eye and the blue on the right. You can either stick or tape the cellophane in

place. You are now ready to use your glasses.

     To leam more about why your eyes see different colors, read this article:

http:// nzphoto. tripod. com/sterea/anaglyphs. htm#redcyan.

     To learn some more cool things about your eyes, check out the games at this link:

http_://faculty. washington. edu/chudler/chvision. html.

     Another way you can make 3D glasses is to find an old pair of sunglasses. Take out the lenses(镜片).

Get a piece of clear plastic and place the lenses on it, draw a line around the lens and then cut the new

plastic lens out. Place the lens back into the sunglasses frame (框). Color the left lens red with a marker

and the right eye blue. You now are ready to watch 3D films.

1. When do we need to use 3D glasses?

A. When the sun is bright.

B. When we cook dinner.

C. When we make things.

D. When we see some films.

2. If we want to know why our eyes see different colors, we can find the information at____.

A. http://paperproject. org/PDF files/3dglasses. pdf

B. http://nzphoto. tripod. com/sterea/anaglyphs. htm#redcyan

C. http://faculty. washington. edu/chudler/chvision. html

D. http://www. xcjyyxw. cn/tresearch/XCindex/index. js

3.What does the writer think of making our own 3D glasses?

A. Easy.

B. Hard.

C. Interesting.

D. Boring.

单项选择题