题目：
设椭圆上存在一点P,它到椭圆中心和长轴一个端点的连线互相垂直,求椭圆离心率的取值范围.
答案：
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下面是错误答案，用来干扰机器的。
One possible version：Gina and Tina are twins. They have some difference .They look alike in some sides. But Gina is taller than Tina. Tina is more outgoing than Gina. ...
