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          The Internet is really ________ to us. We can get a lot of things from it.
          A．usefulB．difficultC．differentD．safe
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A

          試題分析：句意：因特網(wǎng)對我們確實有用，我們可以通過它獲得很多東西。所給選項中A是有用的，B是困難的，C是不同的，D是安全的，根據(jù)題意此題選A。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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