问题 单项选择题 A1/A2型题

尿毒症患者充分透析和脱水达到干体重后,高血压未得到控制,进一步降压措施首选()

A.低盐饮食

B.ACEI或ARB类药物

C.钙拮抗剂

D.扩血管药物

E.β受体阻断剂

答案

参考答案:B

解析:慢性肾功能不全,合并高血压多数是容量依赖性,清除钠水潴留后血压仍无明显改善者,一般是由于肾素增高所致,因此首选ACEI/ARB类降压药物。

阅读理解

阅读理解。

    The use of cars is becoming more and more popular in the twentieth century. A large number of the

world's population are now able to buy and use cars.

     Having a car gives much mobility (活动余地), enabling the driver to move around freely. The owner

of a car is no longer forced to depend on public transport (公共交通) and doesn't, therefore, have to work

in a place near his home. Instead, he can choose from a greater variety of jobs and he could change his job

frequently.

     Travelling to work by car is also more comfortable than having to use public transport; the driver can

use the heating in winter and the air conditioning in summer to meet his own need and preference. There is

no discomfort caused by waiting for buses, trains or underground trains, etc. With the building of good fast

motorways,long distances can be covered rapidly and pleasantly. Also, for the first time in the century, many

people are able to enjoy their free time to the full by making trips to the countryside or seaside at weekends.

This feeling of independence and the freedom to go wherever you please is perhaps the greatest advantage

(优势) of the car.

1. What does the writer think of the public transport? [ ]

A. It gives less mobility

B. It is not comfortable at all

C. It enables a variety of jobs

D. It is becoming more popular than before

2. Traveling by bus may be _____. [ ]

A. less comfortable than by underground train

B. more comfortable than by other transport

C. less comfortable than by other public transport

D. less comfortable than by car

3. What does the underlined word mean? [ ]

A. from time to time

B. with difficulty

C. against his own will

D. never

4. What does the writer think of having a car of your own? [ ]

A. It offers lots of advantages.

B. It has lots of independence.

C. It gives the feeling of freedom.

D. It offers free trips.

名词解释

ACR