I like to train high schoolers for Math Competitions

回答: 由财务自由联想到的。。。IntoTheWild2012-03-18 01:01:37

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I tried. I talked to a math circle. -sweetptt- 给 sweetptt 发送悄悄话 sweetptt 的博客首页 (189 bytes) () 03/18/2012 postreply 10:40:02

You are better than me, and I have not tried yet. -naive2- 给 naive2 发送悄悄话 (141 bytes) () 03/18/2012 postreply 13:31:15

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