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          30.[1999上海] E-mail, as well as the telephones, ________
an important part in daily communication.
          

          
 
          
  
  
          A. is
  playing
          
            		
  
  
          B. have
  played
          
            		
  
  
          C. are
  playing
          
            		
  
  
          D. play
          
            		
 
          

          

           
          
			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				答案：A
          提示：
          題目考察現(xiàn)在進(jìn)行時態(tài)的意義用法——現(xiàn)在動作的描述。注意“as
well as …”連接的結(jié)構(gòu)作為狀語
          

           
          


          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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