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          Scientists have shown that there is a connection ____ cigarette smoking and certain diseases.
          A．withB．betweenC．toD．for
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          考查介詞的用法。根據(jù)題中的cigarette smoking and certain diseases，可知是兩者，因此應(yīng)選擇B項(xiàng)。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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