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          【題目】A scientist’s attempt to produce the world’s first gene-edited babies _____ are immune to HIV has sparked controversy in academia and the public.
          A. as B. who
          C. whom D. whose
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          【答案】B
          【解析】
          考查定語從句。句意為：一位科學(xué)家試圖培育出世界上首個對HIV有免疫力的基因編輯嬰兒，這在學(xué)術(shù)界和公眾中引發(fā)了爭議。定語從句的先行詞為babies，且從句缺少主語，故用關(guān)系代詞who引導(dǎo)從句。故選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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