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				20．Beijing is one of the              in the world  today．    A．busiest  city     B．busiest  cities     C．busy  city       D．busy cities			【查看更多】
			


		
     
    


		
    
		
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    Beijing is one of the ____________ in the world today．
      
    A．busiest city           B．busiest cities         C．busy city            D．busy cities
    

			
    
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    Beijing is one of the         in the world today．
      
    A．busiest city          B．busiest cities         C．busy city            D．busy cities
    

			
    
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    Beijing is one of the ________ in the world today．
    

    

    [　　]
    

    A．

    busiest city
    

    

    B．

    busiest cities
    

    

    C．

    busy city
    

    

    D．

    busy cities
    

    

    

			
    
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    Beijing is one of the ______ in the world today.
    


    A．busiest city        B．busiest
cities       C．busy city          D．busy cities
    


     
    

			
    
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