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           —What’s this? 
          —It’s a machine which was invented in __________century in China.
          A．sixB．sixthC．the sixD．the sixth
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D 

          試題分析: 句意：那是什么？是個(gè)在中國(guó)六世紀(jì)發(fā)明的機(jī)器。 six六，sixth第六。century世紀(jì)，前用序數(shù)詞，序數(shù)詞前用定冠詞，故選D.
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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