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问题 单项选择题

关于术中发生支气管痉挛，叙述正确的是（）。

A.发生极度严重的支气管痉挛时，肺部听诊哮鸣音最响

B.对于因缺氧和二氧化碳蓄积引起的支气管痉挛，施行。IPPV即可缓解

C.对严重支气管痉挛常需β2-受体阻滞药治疗

D.由误吸胃内容物导致的支气管痉挛，胃液的pH值越高，症状越严重

E.术中发生支气管痉挛时，静注吗啡可快速使之缓解

答案

参考答案：B

解析：极度严重的支气管痉挛可无哮鸣音及呼吸音；使用β2-受体阻滞药和吗啡均可使支气管痉挛症状加重，前者拮抗了β2-受体兴奋剂所产生的扩张支气管作用，而后者则因其组胺释放作用而加重支气管痉挛；胃液的pH值越低，其所导致的支气管痉挛越严重。故应选B。

阅读理解

阅读理解。

     If you go to Beijing and Shanghai, you can see the same and the different points between them. In some ways they look the same, in some ways they look different. Both of them have tall buildings and wide streets, although some buildings in Shanghai are taller than in Beijing. They are both important in China. Beijing is the capital of China, there are more places of interest there, but Shanghai is the biggest city in China. Now they are becoming more and more important in China.

1. Some buildings in ______are taller than in Beijing.

A. Shanghai

B. Xi'an

C. Tianjin

D. Chongqing

2. Shanghai is the ______city in China.

A. tallest

B. biggest

C. smallest

D. busiest

3. The underlined word "point" means ______.

A. 想法

B. 点

C. 内容

D. 主意

4. Beijing has more ______ than Shanghai.

A. places of interest  

B. buildings    

C. wide streets

D. people  

5. Which of the following statements is right according to the passage?

A. Shanghai is the capital of China  

B. The buildings in Beijing are taller than in Shanghai

C. Shanghai is the largest city in China.

D. Shanghai has more places of interest
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选择题

下列各句中，划线的成语使用恰当的一项是（   ）

A．在“祝中韩友谊源远流长”的美好祝愿中，第四届韩歌会降下了帷幕。

B．由于竞争激烈，缺少规范，原本商品质优价好的钢琴市场出现了鱼龙混杂的现象。

C．人非圣贤，孰能无过？犯点小错误是在所难免的，也是不足为训的，关键是要吸取教训。

D．经过西方现代、后现代美学思潮熏陶的新生代作家，文学观念已经和他们的前辈南辕北辙。
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