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          Please ______ the computer. We will have the Computer Studies.
          A．openB．turn onC．closeD．turn off
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          詞義辨析。句意：請打開電腦，我們要上電腦課。排除C,D.而open一般是開門，開窗；打開有電源的一般用turn on。選B.
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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