公比是对于等比数列这一特殊数列而言的，它是指在等比数列中后一项与前一项的商。
... median中数 common ratio公比 arithmetic progression(sequence)等差数列 geometric progression(sequence)等比数列 ...
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你无法控制，而开诚布公比遮遮掩掩效果更好。
You can't control, and revelation works better than concealment.
案例简介：“来，宝宝，跟外公比赛，看谁吃得快喏！”
Case introduction: "Come on girl, let's see who can eat faster, you or your grandpa."
一天早晨，他整整衣服帽子，照照镜子，问妻子：“你看，我跟住在城北的徐公比，谁长得漂亮？”
One morning, he tidied his clothes and hat, looked into the mirror, and asked his wife: "Look, who is more handsome, Xu Gong living in the north of the city or I?"
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