问题 单项选择题

伴有潜在性糖尿病的高血压患者不宜用下列哪些药物:

A.卡托普利

B.氢氯噻嗪

C.哌唑嗪

D.普萘洛尔

E.依那普利

答案

参考答案:B,D

解析:[解题思路] 合并糖尿病的高血压选药。一般认为糖原分解与α和β2受体有关。当β受体阻断药与受体阻断药合用时,则可拮抗肾上腺素的升高血糖作用。普萘洛尔并不影响正常人的血糖水平,也不影响胰岛素的降低血糖作用,但能延缓用胰岛素后血糖水平的恢复。这可能是其抑制了低血糖引起儿茶酚胺释放所致的糖原分解。尚需注意,β受体阻断药往往会掩盖低血糖症状,如心悸,从而延误了低血糖的及时观察。

阅读理解

阅读理解。

     I sat at my seat waiting for the school paper to be passed around. I waited anxiously, knowing that

once I received it I would know how good a writer I really am.

     When the paper arrived at my classroom, I nearly knocked down five of my classmates to get to the

first paper. With a school paper in my hands, I returned to my seat. About a month earlier, I had handed

in one of, what I believed to be, my best stories. I named it Symbol of Success. The head of the English

Department at my school, Professor Cullen had said that she would include some reviews of students'

stories in the latest school paper. Professor Cullen was known for her rough criticism. Impressing her

was very hard but I wanted to be the first to do so.

     I sat at the edge of my seat as I read through the other story reviews. There wasn't one story that got

more than three stars .I became calm and wasn't anxious to know my review. It was long after that I

heard someone shout out "Five stars?! Seriously !" from behind me. I turned around and saw the

shocked expression of Gene's face, "Peter, your story got five stars!" I couldn't believe what I was

hearing. I turned my attention back to my story and saw the five stars at the end of the review that I had

not read yet. I looked through the review written by Professor Cullen. She wrote that I had a gift for

story writing.

     I was proud that I achieved what I thought was impossible .For so long I believed I wasn't as good as

I thought I was and that my talent was not enough to cover up my lack of wring skills .But this review

proved that I was truly a good writer and that there was a future ahead of me in the field of fiction writing. The review and the five stars meant the world of me. Those five stars became the symbol of my success.

1. How did the writer get the school paper?

A. His teacher gave it to him first

B. The publisher sent it to him first

C. His friend helped him get the first one.

D. He rushed ahead to get the first one by himself.

2. What can we learn about Professor Cullen? 

A. She was very gentle to everyone

B. She seldom praised her students.  

C. She was very cold to her students.  

D. She was respected by her students.

3. We can learn from this text that Peter_______.

A. had thought his story was better than those of others

B. was always anxious to know the review about him

C. didn't know he got five stars until others told him

D. looked through a few stories that had got four stars

4. What did Professor Cullen think of Peter's story?

A. She thought highly of it  

B. She thought it was just so-so  

C. She thought it was extremely bad 

D. She doubted if it was written by him.

5. Why did the review and the five stars mean the world to Peter?

A. Because they helped him learn writing skills

B. Because they made him happy for some time

C. Because they helped him enter a key university

D. Because they made him see his writing talents.

单项选择题