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          【題目】We all understand that learning a foreign language ________ time and efforts.
          A.requiresB.reducesC.removesD.repeats
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          【答案】A
          【解析】
          略
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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