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问题 单项选择题 A1/A2型题

造成原发性心肌损害而导致慢性心力衰竭发生的最常见代谢障碍性疾病是（）

A.甲状腺功能亢进症

B.甲状腺功能减退症

C.单纯性甲状腺肿

D.糖尿病

E.Cushing综合征

答案

参考答案：D

解析：本题考查了慢性心力衰竭的基本病因。原发性心肌损害包括：①缺血性心肌损害：冠心病心肌缺血和（或）心肌梗死是引起心力衰竭最常见的原因；②心肌炎和心肌病：病毒性心肌炎和原发性扩张型心肌病最为常见；③心肌代谢障碍性疾病：糖尿病最为常见。

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. Where 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.

 

第（14）空应选择（）

A．dangerous

B．comfortable

C．different

D．favorable
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单项选择题

BTS3812基站不支持的CS域透明数据业务速率是：（）

A、64kbit/s

B、57.6kbit/s

C、56kbit/s

D、32kbit/s

E、28.8kbit/s
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