试题与答案

男性,50岁,2年来反复发作胸骨后疼痛,发作和劳累关系不大,常在凌晨5时发作。发作时

题型:单项选择题 案例分析题

题目:

男性,50岁,2年来反复发作胸骨后疼痛,发作和劳累关系不大,常在凌晨5时发作。发作时含硝酸甘油可缓解。平时心电图示I导、avL,导联S-T段水平压低0.5mm。发作时心电图正常。

本例心绞痛的冠状动脉病变最可能是哪一支受累()

A.右冠状动脉

B.左冠状动脉主干

C.左冠状动脉回旋支

D.左冠状动脉前降支

E.右冠状动脉房室结支

答案:

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题型:阅读理解

阅读短文,选择正确答案。

      My parents taught me not to waste food. My mum always found ways to make leftovers (剩余食物) taste

good. I went to Iran to learn about some of their special food. As I was three, I learned about the food and the

history of the area. I learned that they don't waste food, either, and they use leftovers! 

      Many years ago, there was not enough food for everyone. People learned to cook and eat almost everything. They had to think of ways to make special dishes. One of these dishes is kao zha. It's made with leftovers like

meat, soup, oil and fat. That might not sound very good, but it does taste good. Today, kao zha is a special dish

at big banquets (宴会). 

      Another famous dish is called zao bing. It's made with fruit, meat and other things. I really liked it! But I

didn't want to eat too much. It has a lot of fat in it.

      I smelled something burning and I saw smoke, so I found another special food of the Iran area-duck meat.

The duck meat is put in a big oven (炉子) to cook it. Smoke keeps the meat fresh. I don't usually eat meat, but

this duck meat was delicious! It tasted sweet. 

      Iran is a great place with delicious food. I hope I can come back again!

1. The writer learns from her parents ______. [ ]

A. not to eat leftovers

B. to eat good food

C. not to waste food

D. to make good food

2. She finds that people in Iran            . [ ]

A. always waste food

B. don't use leftovers

C. don't have enough food

D. can cook special food

3. Kao zha is a good dish that is made with           . [ ]

A. fruit, meat and other things

B. fresh and sweet duck meat

C. some different leftovers

D. meat, soup and fruit

4. There are             kinds of special foods mentioned in the passage.[ ]

A. two

B. three

C. four

D. five

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题型:选择题

科学家最近发现两种粒子:第一种是只由四个中子构成的粒子,这种粒子称为“四中子”,也有人称之为“零号元素”;第二种是由四个氧原子构成的分子,下列有关这两种粒子的说法不正确的是                                             (  )

A.“四中子”不显电性

B.“四中子”的质量数为4,其质量比氢原子大

C.第二种粒子是氧元素的另一种同位素

D.第二种粒子的化学式为O4,与O2互为同素异形体

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