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问题 单项选择题

男，24岁，胸闷、干咳、气促1个多小时。体查：呼吸32次/分，双肺哮鸣音。病前曾上公园游玩，出现鼻痒、打喷嚏。过去有类似发作史。

须作哪项治疗处理

A．脱离接触，口服舒喘灵、氨茶碱

B．静脉注射地塞米松

C．立即上氧，静脉输液加氨茶碱

D．抗生素+氨茶碱

E．抗生素+激素

答案

参考答案：A

单项选择题

Are you a man or a mouse When people ask this question they want to know (1) you think you are a (2) person or a coward. But you will never really know the answer to this question (3) you are tested in real life. Some people (4) they are brave but when they come face to face with real (5) , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like (6)

Lenny had always thought of himself as a (7) person. He got worried before examinations. He worried about his job and health. All he wanted in life was to be safe and healthy. (8) , on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to see what was happening. He saw a woman in the (9) water. Lenny did not feel afraid. He kept very (10) and did a very dangerous thing. He jumped into the Potomac, (11) to the woman, and kept her head (12) the water. Seventy-eight people died that day. Thanks to Lenny, it was not (13) .

When you are in a very (14) situation and feel afraid, the body automatically produces a chemical in the blood. The chemical is called adrenalin. (15) adrenalin in the blood system, you actually feel per and per and are (16) to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. When this (17) , the muscles become very hard and you find you (18) move at all. You are then paralyzed with fear. This is (19) when we are very frightened, we sometimes say we’re "petrified". This word comes from the Greek word "petros", which means "stone". We are (20) frightened that we become stonelike.

13（）

A.an accident 

B.a mistake 

C.seventy-eight 

D.seventy-nine
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单项选择题

下列各项中，不影响经营杠杆系数的是______。

A．产品销售数量
B．产品销售价格
C．固定成本
D．利息费用
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