关于differencedifference是可数还是不可数名词

  (1)可以当可数名词  差别 ,差异, 不同
 所以可以用a difference 或differences 
e。g。 There is  a difference  between A and B 。
     There are some differences between A and B 。
  
所以你所说的句子可以用:What is the difference of A and B?
                       What are the differences of A and B?
(2)可以当不可数名词 差额；差；差距
e。
  g。  I can't see much difference in them。 
      我看不出他们有什么大的差别。
    The difference between 8 and 2 is 6。 
    八和二差是六。
 
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