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          A man cannot smile like a child，________ a child smiles with his eyes，while a man smiles with his lips alone.
          A．soB．butC．a(chǎn)ndD．for
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          空格處之后的句子補(bǔ)充說明“a man cannot smile like a child”的原因，應(yīng)選用for表原因。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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