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已知等比数列{ http://picflow.koolearn.com/upload/papers/20140824/20140824022626632348.png}中,各项都是正数,且a 1, http://picflow.koolearn.com/upload/papers/20140824/20140824022626648338.pnga 3,2a 2成等差数列,则 http://picflow.koolearn.com/upload/papers/20140824/20140824022626663617.png=(    )

发布时间:2021-09-28

A.1-http://picflow.koolearn.com/upload/papers/20140824/20140824022626663344.png

B.1+http://picflow.koolearn.com/upload/papers/20140824/20140824022626663344.png

C.

D.http://picflow.koolearn.com/upload/papers/20140824/20140824022626663344.png-1

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