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问题 单项选择题

间接抗人球蛋白试验是测定（）

A.血中游离的IgG

B.红细胞膜上的IgM

C.红细胞膜上的IgG

D.红细胞膜上的C3

E.血中游离的IgM

答案

参考答案：A

解析：抗人球蛋白试验是测定不全抗体IgG的经典试验，直接抗人球蛋白试验是测定红细胞膜上的IgG（也包括C3），而间接抗人球蛋白试验是测定血中游离的IgG，因此答案是A。

完形填空
完形填空。

     April 27 is a special day in Britain. It's called "Take Our Daughters to Work Day." It was __1__ to
Britain in 1994 from America. On that day thousands of girls take a day __2__ school and go with one of
their parents to their work places. By doing this, it can__3__girls more about the society where they live.
Now the girls can have a close look at __4__ their parents are doing. This may help them to be calmer 
when they have to choose a __5__. Mary experienced a day of work at her mother's office. This helped
her __6__ her mother's work better. She said that this made her feel more confident about her future.
Schools and many companies. __7__ the activity, too. Some schools __8__ make the day a necessary
part of school life.
     Experts think that girls with more self-confidence are more likely to be __9__ than common girls.
__10__ parents can set' good examples both at work and at home for them, they will do better than
others. Take Our Daughters to Work Day is surely a step in the right direction.

( )1. A. sent      
( )2. A. off        
( )3. A. talk      
( )4. A. which      
( )5. A. place      
( )6. A. thank      
( )7. A. hold      
( )8. A. just      
( )9. A. successful
( )10. A. Because   		B. given      
B. at        
B. keep      
B. what      
B. school    
B. understand
B. refuse    
B. never      
B. polite    
B. If         		C. brought  
C. away    
C. teach    
C. that    
C. friend  
C. praise  
C. choose  
C. even    
C. friendly
C. While    		D. taken        
D. of          
D. make        
D. whom        
D. job          
D. remember    
D. support      
D. ever        
D. knowledgeable
D. Though      
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选择题

2001年4月，在广西对天坑群进行大规模科学考查的专家认为，这里是世界上最大的天坑群，是一座“天坑博物馆”。此天坑群的成因是 （  ）

A．流水侵蚀

B．风力侵蚀

C．断裂下陷

D．火山喷发
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