问题 单项选择题 B1型题

治疗高血压伴心率过快,应首选的治疗是()。

A.α受体阻断药

B.β受体阻断药

C.钙通道阻滞药

D.利尿剂

E.血管紧张素转化酶抑制剂

答案

参考答案:E

解析:治疗高血压伴心率过快,应首选的药物是血管紧张素转化酶抑制剂,其降压作用主要通过抑制周围和组织的ACE,使血管紧张素Ⅱ生成减少,同时抑制激肽酶,使缓激肽降解减少。治疗高血压伴心力衰竭,应首选药物是β受体阻断药,其降压作用可能通过抑制中枢和周围的RAAS,以及血流动力学自动调节机制。

阅读理解

阅读理解

     Have you ever noticed what happens to an idea once you express it ? Just talking about it or writing

it down causes you to make it clear in your own mind. How can you use this to increase your brain

power? Start writing.

     By putting thoughts into words, you are telling yourself the logic behind what you think, feel,or only

partly understand. Often,explaining a thought is the process of understanding. In other words, you increase your brain power by exercising your"explain power".

     Another benefit of writing is that it helps you remember. Many,if not most,highly productive people are always taking notes. You can try keeping it all in your head,but if you keep a journal (日志)of your ideas

the next time you're working on a big project, you'11 probably have more success.

    Want to understand a topic? Write a book about it. That's an extreme example, but if you are learning

something new,write a letter to a friend about it,and you will understand it better. Want to invent something?  Write an explanation of the problem---why you want to solve it,and why it is worth solving, and

you're half-way there.

    Writers don't always write because they clearly understand something beforehand. Often,they write

about something because they want to understand it. You can do the same. Writing will help bring you to

all understanding. Give it a try.

1.What would be the best title for the passage?

A. A Way on How to Write     

B. Increase Your Brain Power Through Writing

C. Brain Power Helps Improve Your Writing

D. How to Start Your Writing

2. According to the passage,writing can help you a lot EXCEPT_________.     

A. to increase your brain power    

B. to improve the ability to remember

C. to develop your interest in study  

D. to strengthen the understanding of a topic

3. If a writer writes something, it means that he or she_________.

A. has understood it very well              

B. needs to understand it better

C. wants to remember it in his or her mind    

D. is testing his or her new ideas

4.The underlined sentence "You're half-way there" in the fourth paragraph means that_________.

A. you are already successful      

B. there is a long way for you to go to reach your goal

C. you are left wondering what to do    

D. you have been on the way to success

单项选择题