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问题 单项选择题 A1/A2型题

下列哪种血红蛋白及其衍生物的颜色是错误的（）。

A.氰化高铁血红蛋白呈鲜红色

B.高铁血红蛋白呈红褐色

C.氧合血红蛋白呈鲜红色

D.还原血红蛋白呈暗红色

E.碳氧血红蛋白呈樱红色

答案

参考答案：A

完形填空
完形填空。
     Spend time in a bookshop can be enjoyable. If you go to a good shop, no __1__ will come near to you
  and say, "Can I help you?" You __2__ buy anything you don't want. You may try to find out __3__  the
 book you want is. But if you fail, the assistant will lead (引导) you there and then he will go away. It
 seems that he is not __4__  in selling any books at all.
     There is a story which tells us about a good shop. A medical student __5__  a very useful book in the
 shop, __6__  it was too expensive for him to buy. He couldn't get it from the library, either. So every
 afternoon, he went there to read __7__ at a time.
     One day, however, he couldn't find the __8__  from its usual place and was leaving when he saw an
 assistant signing to him. To his surprise, the assistant __9__  to the book in a corner, "I put it there so as
 not to be __10__ out." said the assistant. Then he left the student go on with his reading.
( ) 1. A. assistant    
( ) 2. A. won't        
( ) 3. A. what        
( ) 4. A. surprised    
( ) 5. A. bought      
( ) 6. A. but          
( ) 7. A. little      
( ) 8. A. book        
( ) 9. A. went        
( ) 10. A. sold        		  B. waiter      
  B. needn't      
  B. which        
  B. surprising  
  B. found        
  B. and          
  B. a little    
  B. shop        
  B. used        
  B. taken        		C. police        
C. mustn't      
C. where        
C. interesting  
C. read          
C. so            
C. few          
C. assistant    
C. pointed      
C. found         		D. teacher        
D. can't          
D. when            
D. interested      
D. took            
D. or              
D. a few          
D. shopkeeper      
D. left            
D. watched        
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补全对话，情景问答
根据对话语境，填入恰当的单词。
A: Maria, do you have any problems?
B: Yeah. I don't enjoy parties because I don't know __1__ to say or do.
A: If I __2__ you, I'd talk to someone who __3__ friendly.
B: Great. And I __4__ nervous before big parties and then I get pimples. What __5__ I do?
A: The foods you eat could help you to __6__ this problem. You should eat lots of fruits and vegetables
     and __7__ lots of water.
B: OK. Even worse, I can't go to sleep the night before I __8__ a big exam. Then I'm too tired to do the
    exam well. Can you give me some advice?
A: Sure. If I were you, I'd __9__ a long walk before __10__ to bed. That should help you relax.
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