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          Most volunteers are from universities, _________ it is not uncommon to see middle and primary school students too.
          A．thoughB．howeverC．sinceD．even if
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A

          試題分析：句意：盡管普遍可以看到中學(xué)生和小學(xué)生，但是大多數(shù)志愿者來自于大學(xué)。Though盡管；however不管怎樣；since自從；even if即使，選A。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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