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问题 单项选择题

原发性血小板增多症诊断依据不包括（）

A．血小板计数＞1000×10（9）／L

B．骨髓象增生，以巨核细胞为显著，有大量血小板形成

C．无出血倾向，WBC计数不增多

D．多数脾大

E．除外反应性血小板增多症和其他骨髓增殖性疾病

答案

参考答案：C

完形填空
完形填空。

     Young people are often unhappy when they're with their parents. They say that their parents don't 
  1    them. They often think their parents are too strict with them.    2    often find it difficult to win
their children's trust (信任). They seem to forget how they themselves felt when they were     3   , so
they can't quite understand young people now.    
     For example, young people like to do things without much thinking. It's one of their ways to    4    
that they have grown up and they can do    5    any difficult things. And    6    people worry more easily.
Most of them usually    7    what they will do carefully, while young people don' t.
     Young people often make their parents angry by clothes they    8    , the music they enjoy and
something else. But they don't mean to cause any trouble.    9    just feel that in this way they can be
far away from the old people's    10    and they want to make a new culture of their own. And    11    
their parents don't like their music or clothes or their way of speaking, the young people feel very  
    12   , because sometimes they even don't want their parents to say "Yes" to what they do. They
    13    to stay at home alone and do    14    they like.
      I think young people should try to    15    their parents to understand them. If so, they can get on
well with each other.

( )1. A. know     
( )2. A. Teachers 
( )3. A. young    
( )4. A. learn    
( )5. A. for      
( )6. A. older    
( )7. A.  look for
( )8. A. put on  
( )9. A. They    
( )10. A. place  
( )11. A. after   
( )12. A. worried
( )13. A. want   
( )14. A. why     
( )15. A. get     		B. understand 
B. Students   
B. old        
B. see        
B. with                
B. younger      
B. look after
B. wear       
B. We         
B. world      
B. until      
B. tired      
B. remember   
B. where      
B. let         		C. want     
C. Parents   
C. healthy   
C. show      
C. without           
C. more            
C. think about
C. sell        
C. You        
C. family     
C. before     
C. happy      
C. help       
C. when       
C. make      		D. love         
D. Children        
D. free           
D. find           
D. in              
D. fewer          
D. worry about     
D. give       
D. I             
D. room          
D. if             
D. sad            
D. forget      
D. what           
D. tell      
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单项选择题

测量误差有系统误差、（）、粗大误差。

A、随机误差

B、人为误差

C、环境误差

D、条件误差
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