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				 Last term our maths teacher set so difficult an examination problem       none of us worked out.     A. that     B. as       C. so that     D. which			【查看更多】
			


		
           
          


		
          
		
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           Last term our maths teacher set so difficult an examination problem _____ none of us worked it out.  
            
          A. that    B. as    C. so that    D. which 
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
            
          　 A. that 　 B. as    C. so that 　 D. which
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
           Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
            
          　 A. that 　 B. as   C. so that 　 D. which
          

			
          
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          Last term our maths teacher set so difficult an
examination problem ______none of us worked out.
          


          A. that      B.
as     C. so that     D. which 
          


           
          

			
          
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          Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
            
          A. that 　 B. as 　 C. so that 　 D. which
              
           
          

			
          
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