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已知x,y满足 http://picflow.koolearn.com/upload/papers/20140824/20140824020356044749.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824020356060689.png的最小值是(   )

发布时间:2021-07-20

A.1

B.http://picflow.koolearn.com/upload/papers/20140824/20140824020356075338.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824020356091411.png

D.2

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