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问题 单项选择题 A1/A2型题

不属于类固醇激素的是（）

A.糖皮质激素

B.睾酮

C.多巴胺

D.雌二醇

E.孕酮

答案

参考答案：C

完形填空
完形填空。
       I work in the school library. There are many kinds of   1    in it. For example, books about English,
  science, history, music,    2  . You   3    do some reading or borrow (借入) books from it But there are
  some   4   . You must obey (遵守) them.
       When you are reading in the library, you have to    5  quiet. Don't talk loudly  6  make any
  noise (喧哗). You    7   listen to music, either(也). You    8   take your bag or wet umbrellas into the
  library.    9   or drink in the library. You can borrow books from the library,   10  you can't lend (借出)
  them to others. You have to take good care of (好好保管) them and return them on time (按时归还).
  If the library books are lost, you have to pay for them.
( )1. A. people      
( )2. A. so no      
( )3. A. can        
( )4. A. magazines  
( )5. A. be          
( )6. A. and        
( )7. A. don't      
( )8. A. aren't      
( )9. A. No eating  
( )10.A. but         		B. books      
B. as well    
B. have to    
B. rules      
B. are        
B. but        
B. can't      
B. don't      
B. Not eat    
B. if          		C. magazines    
C. and so on    
C. can't        
C. CDs          
C. /            
C. or          
C. have to      
C. can't        
C. Don't eat    
C. or           		D. newspapers  
D. as well as  
D. don't        
D. problems    
D. have        
D. also        
D. can          
D. can          
D. Can't eat    
D. and          
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问答题 简答题

PC为什么能够取代以继电器为基础的控制系统？
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