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          Lately some scientists are experimenting ___________ white mice to ____________ this kind of medicine.
          A．on,try onB．with, test onC．on ,test outD．with,carry out
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          句意：最近一些科學(xué)家正在在白鼠身上做實(shí)驗(yàn)來檢測這種藥。短語：experiment on 在什么上做實(shí)驗(yàn)，test out 檢測，測試，所以選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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