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          As is reported, it is 100 years ________Qinghua University was founded.
          A．whenB．beforeC．a(chǎn)fterD．since
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D

          試題分析：句意:正如報(bào)道的,自從清華大學(xué)成立到現(xiàn)在已經(jīng)100年了。when 當(dāng)......時(shí)候；before 在......之前；   after 在......之后；since 自從。It is /has+時(shí)間段+since+sb.+did sth.自從某人做了某事已經(jīng)多長時(shí)間了。故選D。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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