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          --- This history book is of great value. 
          --- Exactly. ____________ can be enjoyed from it ____________ you have a deep understanding of it, however. 
          A．Nothing; unlessB．Few; tillC．Something; untilD．Little; since
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A

          試題分析：句意：--這本歷史書很有價值。--的確如此。除非你對它有一個很深刻的理解，否則就不能很好的理解它。分析結(jié)合句意理解，只有運用連詞unless適合。故選A
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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