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          ----It’s traditional in China to             firecrackers on Spring Festival.
           ----But the serious smog（霧霾）nowadays needs us to stop it.
          A．give outB．set offC．put offD．show off
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B   

          試題分析：句意：春節(jié)放鞭炮是中國傳統(tǒng)。但現(xiàn)在嚴(yán)重的霧霾需要我們阻止它。give out分發(fā)，贈送； set off        出發(fā); （使）開始; 引起; 點燃; put off推遲；show off使突出; 炫耀，賣弄。所以選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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