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页次:1/2
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#跟帖# 怎么才能想到构造那个不等式呢?
[脑筋急转] - calligraphy(0 bytes )
2015-05-03
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#跟帖# 小学生做中学生竞赛题?
[脑筋急转] - calligraphy(0 bytes )
2014-11-19
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#跟帖# 21 + 15 > 30
[脑筋急转] - calligraphy(0 bytes )
2014-01-17
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mathcounts conuting problem
[脑筋急转] - calligraphy(123 bytes )
2013-12-19
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#跟帖# 回复:求助:这些数字排列有何规律?
[脑筋急转] - calligraphy(135 bytes )
2012-12-29
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#跟帖# 是否可以这样想?
[脑筋急转] - calligraphy(198 bytes )
2012-12-29
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我也跟不上。只能再敲一边。
[脑筋急转] - calligraphy(1106 bytes )
2012-11-19
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#跟帖# 99%的工程师们都不会算错。
[脑筋急转] - calligraphy(0 bytes )
2012-11-08
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#跟帖# 第一个的试解:
[脑筋急转] - calligraphy(283 bytes )
2012-10-20
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#跟帖# 估计要用抽屉原理,我得使劲想想。过两天。
[脑筋急转] - calligraphy(0 bytes )
2012-09-12
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#跟帖# 回复:一道MATHCOUNTS习题
[脑筋急转] - calligraphy(614 bytes )
2012-09-11
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一道MATHCOUNTS习题
[脑筋急转] - calligraphy(132 bytes )
2012-09-11
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#跟帖# 回复:It is Great for an amater. I like music , calligraphy and wei
[脑筋急转] - calligraphy(35 bytes )
2011-07-31
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#跟帖# 回复:揩书最难藏拙,能写,就不容易了.苗女画得不错,手掌最难画,勇气可佳.
[脑筋急转] - calligraphy(88 bytes )
2011-07-30
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支持一下书画群组吧,传统艺术,去加油
[脑筋急转] - calligraphy(215 bytes )
2011-07-30
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#跟帖# further refined solution
[脑筋急转] - calligraphy(143 bytes )
2011-04-05
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#跟帖# refined solution
[脑筋急转] - calligraphy(840 bytes )
2011-04-05
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any better way to solve it?
[脑筋急转] - calligraphy(2183 bytes )
2011-04-04
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#跟帖# 小结巴结结结结巴
[脑筋急转] - calligraphy(23 bytes )
2011-02-17
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#跟帖# a similar one
[脑筋急转] - calligraphy(920 bytes )
2011-02-15
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#跟帖# 回复:平方和
[脑筋急转] - calligraphy(18 bytes )
2011-02-15
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#跟帖# 大结结结结结巴
[脑筋急转] - calligraphy(0 bytes )
2011-02-11
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#跟帖# "to see a star" better to be "to see THE start", please read my
[脑筋急转] - calligraphy(0 bytes )
2011-02-03
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#跟帖# 回复:Thanks,Xephisiss-231only one star,...I guess,the oringinal qu
[脑筋急转] - calligraphy(330 bytes )
2011-02-03
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#跟帖# comet prediction and hurricane forcast - Make the problem cleare
[脑筋急转] - calligraphy(625 bytes )
2011-02-03
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#跟帖# 回复:本来就不是什么条件概率
[脑筋急转] - calligraphy(151 bytes )
2011-02-03
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#跟帖# 回复:谢提问,如过您有独立事件,条件概率的概念,我们再细谈,先看例子.
[脑筋急转] - calligraphy(16 bytes )
2011-02-02
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#跟帖# 回复:Thanks,your Method is right for tutoring your son.I think,
[脑筋急转] - calligraphy(409 bytes )
2011-01-09
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#跟帖# 回复:You can read "BOROTHER' 1/4 answer,but
[脑筋急转] - calligraphy(261 bytes )
2011-01-09
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#跟帖# some comments
[脑筋急转] - calligraphy(1893 bytes )
2011-01-09
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#跟帖# isn't o =2?
[脑筋急转] - calligraphy(0 bytes )
2011-01-07
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#跟帖# D is not 5. Then this might be the abswer:
[脑筋急转] - calligraphy(31 bytes )
2011-01-07
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#跟帖# no solution in this case
[脑筋急转] - calligraphy(0 bytes )
2010-12-17
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#跟帖# nice
[脑筋急转] - calligraphy(0 bytes )
2010-12-17
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#跟帖# very nice
[脑筋急转] - calligraphy(0 bytes )
2010-12-17
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#跟帖# agree
[脑筋急转] - calligraphy(0 bytes )
2010-12-01
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#跟帖# agree
[脑筋急转] - calligraphy(0 bytes )
2010-11-17
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#跟帖# 回复:回复:ok, i see; you got it already. But you might want to put y
[脑筋急转] - calligraphy(86 bytes )
2010-11-17
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#跟帖# 回复:填字游戏 - 顶上来讨论(by wushuihe)
[脑筋急转] - calligraphy(55 bytes )
2010-11-17
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#跟帖# 回复:ok, i see; you got it already. But you might want to put yo
[脑筋急转] - calligraphy(62 bytes )
2010-11-17
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#跟帖# 回复:ok, i see; you got it already. But you might want to put yo
[脑筋急转] - calligraphy(172 bytes )
2010-11-17
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#跟帖# my solution
[脑筋急转] - calligraphy(451 bytes )
2010-11-17
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#跟帖# 回复:a different way to look at it
[脑筋急转] - calligraphy(12 bytes )
2010-11-01
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#跟帖# the cycles are shorter than mine
[脑筋急转] - calligraphy(0 bytes )
2010-09-07
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#跟帖# I am a dummy level, and my answer is the same as other two.
[脑筋急转] - calligraphy(472 bytes )
2010-09-07
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#跟帖# very good!
[脑筋急转] - calligraphy(0 bytes )
2010-09-02
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#跟帖# 回复:下面找路的题重贴-3 星
[脑筋急转] - calligraphy(776 bytes )
2010-03-13
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#跟帖# 回复:1.5 star star- finding road
[脑筋急转] - calligraphy(292 bytes )
2010-03-13
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#跟帖# 回复:1.5 star star- finding road
[脑筋急转] - calligraphy(101 bytes )
2010-03-13
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#跟帖# 回复:回复:回复:回复:even start with your approach, you should..
[脑筋急转] - calligraphy(80 bytes )
2010-03-13
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页次:1/2
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