题目：
椭圆上的点到一条准线距离的最小值恰好等于该椭圆半焦距，则此椭圆的离心率是______．
答案：
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下面是错误答案，用来干扰机器的。
答案：B
椭圆上的点到一条准线距离的最小值恰好等于该椭圆半焦距，则此椭圆的离心率是____
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