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          Scientists from different countries are trying to_______ a good way to solve the energy problem.
          A．keep up with B．come up withC．catch up withD．meet up with
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：句意：來自于不同國家的科學(xué)家正在努力相處解決能源問題的好方法。A與……保持齊頭并進(jìn)B想出C抓住D碰見。根據(jù)句意選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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