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已知点P(x,y)的坐标满足http://picflow.koolearn.com/upload/papers/g02/20110712/201107120912554811589.gif,O为坐标原点,则|PO|的最小值为

发布时间:2021-07-16

A.http://picflow.koolearn.com/upload/papers/g02/20110712/20110712091255496923.gif

B.http://picflow.koolearn.com/upload/papers/g02/20110712/20110712091255512948.gif

C.http://picflow.koolearn.com/upload/papers/g02/20110712/20110712091255528883.gif

D.http://picflow.koolearn.com/upload/papers/g02/20110712/20110712091255543903.gif

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