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          —Quite a lot of students failed in the math exam．
           —Exactly．It is ____ their abilities．
          A．within B．overC．a(chǎn)gainstD．beyond
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          介詞辨析。   A．在……之內(nèi)    B．越過；在……之上  C．靠；反對D．超出；句意：相當(dāng)多的學(xué)生在數(shù)學(xué)考試中不及格�！_實的。有點超出他們的能力了。故選D。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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