问题 判断题

12V直流电源有一只滤波电解电容器(110µF/16V)损坏了,现手头上有一只220µF/10V,和一只220µF/6V的电解电容器,把它们串联起来使用就行了。

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判断题
完形填空
完形填空。
     What  should  we  do to  keep  healthy?  One  important rule is to exercise_1_. The Fang family try to
exercise every day. Mr Fang _2_exercise in the morning because he must get to work at exactly seven
o'clock. But he runs every evening. He walks a lot, _3_. He walks to school every day, and after school
he _4_different sports with his friends. Mr Fang goes to a yoga (瑜加功) class _5_.
     But it wasn't _6_this way. Last year Mr and Mrs Fang used to (过去常常) _7_everywhere in their
car, even to the drugstore (药店) two blocks (街区)away. They thought they had to use the car all the
time. They wouldn't walk.
     The Fangs all _8_better now. They believe they shouldn't be lazy. We _9_exercise every day, but we
should try our _10_to exercise as often as possible.
( )1.A. often        
( )2.A. may not      
( )3.A. either      
( )4.A. watches      
( )5.A. in two weeks
( )6.A. always      
( )7.A. riding      
( )8.A. had          
( )9.A. needn't      
( )10.A. best        
B. sometimes    
B. can not      
B. also          
B. plays        
B. for two weeks
B. even          
B. drive        
B. make          
B. don't        
B. good          
C. late          
C. would not      
C. too            
C. loves          
C. after two weeks
C. sometimes      
C. fly            
C. feel          
C. won't have    
C. well          
D. later        
D. should not  
D. again        
D. likes        
D. twice a week     
D. no          
D. walk        
D. feel like    
D. mustn't      
D. better