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若等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824022208764480.png的公差 http://picflow.koolearn.com/upload/papers/20140824/20140824022208779444.png,且 http://picflow.koolearn.com/upload/papers/20140824/20140824022208795480.png成等比数列,则 http://picflow.koolearn.com/upload/papers/20140824/20140824022208810459.png(   )

发布时间:2021-09-28

A.

B.http://picflow.koolearn.com/upload/papers/20140824/20140824022208826382.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824022208826338.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824022208842388.png

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