题目内容
A.x-1>1-y B.x-1>y-1 C.x-y>1-y D.1-x>y-x
解析:利用不等式的性质直接判断.
答案:A
A.x-1>1-y B.x-1>y-1
C.x-y>1-y D.1-x>y-x