$$a=10001+\dfrac{10000}{1995}$$，$$b=10001-\dfrac{10000}{1996}$$，$$c=10001+\dfrac{1}{1995}$$，$$d=10001-\dfrac{1}{1996}$$．  所以$$a\textgreater c\textgreater d\textgreater b$$． 
设$$a=\dfrac{19961995}{1995}$$，$$b=\dfrac{19951996}{1996}$$，$$c=\dfrac{19951996}{1995}$$，$$d=\dfrac{19961995}{1996}$$，则下列不等关系中成立的是（ ~）．
(A) $$a\textgreater b\textgreater c\textgreater d$$ 
(B) $$c\textgreater a\textgreater d\textgreater b$$ 
(C) $$a\textgreater d\textgreater c\textgreater b$$ 
(D) $$a\textgreater c\textgreater d\textgreater b$$ 