问题 填空题

相位滞后校正装置又称为()调节器,其校正作用是利用G(s)的负斜率使ωC减小,改善静态性能。

答案

参考答案:P-Ⅰ

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完形填空。
     I am going to have a party tomorrow night. I promised my mother that she needn't do    1    for me.
My friend Jane is    2  , too. She would like to help me, but she can't,    3    she has a piano lesson in the
morning and in the afternoon she has to babysit her sister. So I will do everything by    4  . I try to make
the party a nice one.
     I sent invitations to my friends    5  . Now I am thinking about what I need to do tomorrow. Yes! I am
going to    6   some food, drinks and some fruit. I am going to make a shopping list    7   I go. I also have
to decorate (装饰) the room. I need to do so many things. So I    8   watch my favorite talk show after
lunch. What a pity!
     The party begins    9   7:00 pm. So I must have my dinner   10  , because I am tired after I finish doing
so many things and after dinner I can have a short rest.
( )1. A. something   
( )2. A. going       
( )3. A. because     
( )4. A. me          
( )5. A. yesterday        
( )6. A. take        
( )7. A. after       
( )8. A. can         
( )9. A. at          
( )10. A. late        
B. anything      
B. back          
B. though      
B. myself         
B. tomorrow        
B. sell          
B.when          
B. not           
B. in            
B. early      
C. nothing      
C. coming        
C. but          
C. her           
C. at once          
C. buy         
C. how          
C. can't       
C. on            
C. short     
D. everything        
D. here                 
D. and                
D. herself               
D. soon                                
D. ring              
D. before                 
D. never             
D. with                  
D. quick         
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