问题 单项选择题 A1/A2型题

关于山莨菪碱,下列叙述错误的是()

A.外周作用与阿托品相似

B.主要用于麻醉前给药、震颤麻痹、防晕止吐及感染性休克

C.禁止用于青光眼

D.易透过血-脑脊液屏障

E.解除平滑肌痉挛作用较阿托品稍弱

答案

参考答案:D

解析:山莨菪碱对抗乙酰胆碱所致的平滑肌痉挛和抑制心血管的作用,与阿托品相似而稍弱,同时也能解除血管痉挛,改善微循环。但它的抑制唾液分泌和扩瞳作用则仅为阿托品的1/20~1/10。因不易穿过血-脑脊液屏障,中枢兴奋作用很少。和阿托品相比,其毒性较低,解痉作用的选择性相对较高,副作用与阿托品相似。适用于感染性休克、内脏平滑肌绞痛。青光眼禁用。

阅读理解

Given that many people's moods (情绪)are regulated by the chemical action of chocolate, it was probably only a matter of time before somebody made the chocolate shop similar to a drug store of Chinese medicine. Looking like a setting from the film Charlie&the Chocolate Factory, Singapore's Chocolate Research Facility (CRF) has over 100 varieties of chocolates.its founder is Chris Lee who grew up at his parents' corner store with one hand almost always in the jar of sweets.

If the CRF seems to be a smart idea, that's because Lee is not merely a seasoned salesperson but also head of a marketing department that has business relations with big names such as Levi's and Sony. That idea surely results in the imagination at work when it comes to making different flavored(味道)chocolates.

The CRF's produce is "green". made within the country and divided into 10 lines, with the Alcohol Series being the most popular. The Exotic Series一with Sichuan pepper, red bean (豆).cheese and other flavors一also does well and is fun to taste. And for chocolate snobs,who think that they have a better knowledge of chocolate than others, the Connoisseur Series uses cocoa beans from Togo, Cuba, Venezuela , and Ghana, among others.

小题1:What is good about chocolate?

A.It serves as a suitable gift.

B.It works as an effective medicine.

C.It helps improve the state of mind.

D.It strengthens business relations.小题2:Why is Chris Lee able to develop his idea of the CRF?

A.He knows the importance of research.

B.He learns form shops of similar types.

C.He has the support of many big names

D.He has a lot of marketing experience.小题3:Which line of the CRF produce sells best?

A.The Connoisseur Series.

B.The Exotic Series.

C.The Alcohol Series.

D.The Sichuan Series.小题4:The words "chocolate snobs" in Paragraph 3 probably refer to people who

A.are particular about chocolate

B.know little about cocoa beans

C.look down upon others

D.like to try new flavors

单项选择题