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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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