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          We should protect the earth，         we will have no water to drink．
          A．soB．orC．a(chǎn)ndD．but
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          本題考查連詞的詞義辨析。由上下句可我們應(yīng)該不保護(hù)地球，“否則”我們將沒(méi)有水喝，故答案選B，or引導(dǎo)的表示條件的假設(shè)。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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