高中数学代数与函数一其他练习题89
题目内容

已知 http://picflow.koolearn.com/upload/papers/20140824/20140824021523475630.png都是定义在 http://picflow.koolearn.com/upload/papers/20140824/20140824021523490279.png上的函数, http://picflow.koolearn.com/upload/papers/20140824/20140824021523522587.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824021523537850.pnghttp://picflow.koolearn.com/upload/papers/20140824/201408240215235681062.pnghttp://picflow.koolearn.com/upload/papers/20140824/201408240215235841110.png,在有穷数列 http://picflow.koolearn.com/upload/papers/20140824/201408240215236001334.png中,任意取正整数 http://picflow.koolearn.com/upload/papers/20140824/20140824021523646650.png,则前 http://picflow.koolearn.com/upload/papers/20140824/20140824021523678312.png项和大于 http://picflow.koolearn.com/upload/papers/20140824/20140824021523693420.png的概率是 (    )

2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140824/20140824021523709308.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824021523724370.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824021523740369.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824021523756346.png

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