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          In this world there is no shortcut to take. So people, no matter how clever they are, can’t succeed_______ they work hard.
          A．ifB．even thoughC．unlessD．but
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          此題考查連詞，unless表示除非。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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