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          It was 1995 __________ we began to develop the new computer system.
          A．whenB．whichC．sinceD．that
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A

          試題分析：句意：當(dāng)我們開發(fā)新的電腦系統(tǒng)的時(shí)候是1995年。When引導(dǎo)時(shí)間狀語(yǔ)從句，it指時(shí)間，這題容易錯(cuò)選成D，以為是強(qiáng)調(diào)句，而強(qiáng)調(diào)句的判斷方法是去掉強(qiáng)調(diào)結(jié)構(gòu)，如果這句話還成立就是強(qiáng)調(diào)句，這句話去掉強(qiáng)調(diào)句結(jié)果后是we began to develop the new computer system1995.可以看出在1995年前面缺少介詞in，所以選A。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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