© 2010 sam

Stacie, 你的数学好geng吖~

Youku:于淼老师—每周一课速算和巧算作业题

http://v.youku.com/v_show/id_XNzc2NjM1NjQ=.html

One Comment

  1. Posted April 4, 2010 at 7:16 pm | #

    我们都是中国的教育下的数学天才。哈哈。

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