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          _____ basic first-aid techniques will help you respond quickly to emergencies.
          A．KnownB．Having knownC．KnowingD．Being known
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          考查動名詞做主語。分析句子成分可知，謂語是will help，所以前面的是主語，用動名詞做主語。句意：了解基本的急救知識可以讓你盡快的回應(yīng)緊急狀況。所以選C。
          【考點(diǎn)定位】考查動名詞做主語。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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