问题描述：
Give a ,b ,c satisfy c＜b＜a and ac＜0 ,then which one is not sure to be correct in the following
inequalities?
A a分之b ＞a分之c
B c分之（b-a)＞0
C c分之(b²）＞c分之a²
D ac分之（a-c)＜0
inequalities?
A a分之b ＞a分之c
B c分之（b-a)＞0
C c分之(b²）＞c分之a²
D ac分之（a-c)＜0
问题解答：
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