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如图所示，L1、L2、L3为三个相同的灯泡。在变阻器R的滑片P向上移动过程中，下列判断中正确的是

[ ]

A．L2变暗，L3变亮

B．L1变亮，L3变暗

C．L1中电流变化量等于L3中电流变化量

D．L1中电流变化量小于L2中电流变化量

答案

答案：A

完形填空
完形填空。
     What do people do with their old, out-of-date but still useful computers?   1   people don't know what
to do with them. Many old computers are   2   in people's homes. Many more are simply thrown out with 
  3  .
     Finally, some   4   are thinking of ways to bring down   5   old computers. Sony has agreed to help   6   
old Sony products. Dell and HP now also take back some old computers. In some countries, laws are being
passed, too. Computer companies will have to pay for   7   and recycling their used products. And   8   of
computer waste must be recycled. The   9   behind the laws is that computer companies themselves should
pay the cost. That will encourage them  10  computers that are easier and cheaper to repair and upgrade
(升级).
     Yet while many people are throwing away good computers,  11  cannot afford them at all.  12  
organizations are working to solve this problem. They collect and repair old computers. Some also teach
others how  13  computers. 
     The computers then go to schools, charities and people who need them.  14  a used computer to one
of these organizations can turn one person's rubbish into  15  useful thing and cut down waste, too.
( )1. A. Few           
(     )2. A. put off       
(     )3. A. the computers 
(     )4. A. buildings     
(     )5. A. a few of      
(     )6. A. throw         
(     )7. A. collecting    
(     )8. A. Two-thirds    
(     )9. A. way           
(     )10. A. making        
(     )11. A. other          
(     )12. A. Hundreds of   
(     )13. A. to use        
(     )14. A. Buying        
(     )15. A. someone else   		B. Most        
B. taken away  
B. the rubbish 
B. schools     
B. a little    
B. recycle     
B. collect     
B. Many        
B. advice      
B. make        
B. another     
B. Hundred     
B. to recycle  
B. Giving      
B. nobody else       		C. No           
C. put away     
C. money        
C. companies    
C. a number of  
C. sell         
C. repairing    
C. Few          
C. idea         
C. to make      
C. the others   
C. Thousands    
C. to study     
C. Borrowing    
C. anyone else's     		D. More               
D. made up            
D. houses             
D. offices            
D. too much           
D. buy                
D. repair             
D. None               
D. reason                
D. made             
 D. others             
D. Million of         
D. to buy             
D. Lending            
D. someone else's 
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填空题

推送车辆前或连续连挂作业中连挂车组间隔超过（）车时必须试拉。连续连挂作业时，每个连结处均应检查确认，最后一组（辆）禁止连续连挂。
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