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    Nowadays            of business letters are written in English.？ 
    A．two-thirdB．two-thirdsC．two-threeD．two-threes
    			
    


			
    

		
    
		
		
	
    
		
    
			
    
				
    
				
    B 
    考查分?jǐn)?shù)。分子用基數(shù)詞分母用序數(shù)詞表示，當(dāng)分子大于一，分母要加S。故選B。
    				
    
							
    
			
    
			
    
			
			
    
		
    
	
    

		
    

		





			
    
		
    
		
				
    
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