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外国人是不是也背诵乘法口诀? - 知乎

 4 years ago
source link: https://www.zhihu.com/question/315341729/answer/623843740
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我是一个俄罗斯人,我特别想回答一下这个问题,我知道这世界上有乘法口诀这么个东西是我结婚以后才发现的…

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