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				  Students should follow the teacher’s        in a lab.A. directions    B.  explanations  C.  instructions  D. introductions			【查看更多】
			


		
           
          


		
          
		
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          Students should follow the teacher’s ______ in a lab.
            
          A. directions        B. explanations        C. instructions        D. introductions
          

			
          
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