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 <title><![CDATA[一道好玩的数学题]]></title>
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 <description><![CDATA[Latest 20 replies of 一道好玩的数学题]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[墓志铭]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#619798]]></link>
 <author><![CDATA[bbsbird]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 02 Oct 2010 07:17:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[看不到题..只能看答案.. [s:8]]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#619789]]></link>
 <author><![CDATA[泡沫果冻]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 30 Sep 2010 14:30:12 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[c......]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#619787]]></link>
 <author><![CDATA[hjm20101]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 30 Sep 2010 13:34:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[题目捏？]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#617148]]></link>
 <author><![CDATA[恋飞の鱼]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 10 Jun 2010 01:58:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[晕哦i，题目都看不到，，]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#616538]]></link>
 <author><![CDATA[lhsy]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 28 Apr 2010 13:14:35 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[没看见题目 [s:8]]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#609600]]></link>
 <author><![CDATA[飞甩鸡毛2]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 22 Aug 2009 07:35:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第14楼专家点评于2007-05-18 18:08发表的&nbsp; :

[s:5]我们也教过[/quote]
居然和我们老师一样！！]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#609599]]></link>
 <author><![CDATA[老饭店的猪]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 22 Aug 2009 07:28:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[l来看看勒..哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#609598]]></link>
 <author><![CDATA[hjn1993320]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 22 Aug 2009 07:21:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[太伤神了,直接看答案!]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550483]]></link>
 <author><![CDATA[register156]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Mon, 28 May 2007 08:03:53 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[D]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550459]]></link>
 <author><![CDATA[逍遥1方]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Mon, 28 May 2007 04:15:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[应该是数字题 选中间数...]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550448]]></link>
 <author><![CDATA[xuanyaoqq]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sun, 27 May 2007 20:50:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[似乎没什么简单的办法, 只好分类数了. 假设格子的边长是d (这里d=7)

1. 形状是 m x n的长方形(包括正方形)有 (d+1-m) x (d+1-n) 个, 对m和n求和 =&gt; 任意形状的长方形一共有
N1 = 1/4 x (d+1)^2 x d^2个

2.1 每个长方形(不包括正方形)可以通过切掉短边上的 1 个角生成直角梯形. 长方形有两条短边, 所以直角梯形的个数 ..]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550421]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sun, 27 May 2007 13:55:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[手头没笔.....本来还真想做一下...]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550379]]></link>
 <author><![CDATA[小神]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sun, 27 May 2007 04:38:48 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[选D]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550354]]></link>
 <author><![CDATA[pitt_chen]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 26 May 2007 16:57:23 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[s:1]]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#550310]]></link>
 <author><![CDATA[实习警花]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 26 May 2007 09:59:47 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[let me see]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#549800]]></link>
 <author><![CDATA[wuyu72]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 19 May 2007 21:22:06 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[讨厌小学的数学竞赛...]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#549765]]></link>
 <author><![CDATA[吥唏罕]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Sat, 19 May 2007 09:45:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第11楼拉希德·帕夏于2007-05-18 10:00发表的&nbsp; :
老师说遇到不会的题目就选C [s:5][/quote]
错了. 似乎以前高考是这样的.现在都平均了
不过&nbsp; 现在流行&nbsp; 选 选项最长的这个 就是字数最多的个]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#549721]]></link>
 <author><![CDATA[破风╃折翅舞]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 18 May 2007 10:40:30 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第11楼拉希德·帕夏于2007-05-18 10:00发表的&nbsp; :
老师说遇到不会的题目就选C [s:5][/quote]
[s:5]我们也教过]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#549720]]></link>
 <author><![CDATA[专家点评]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 18 May 2007 10:08:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:8] 有一次借了一本趣味数学,故事答案解释都在,可还是看不到10页,与数无缘...

还是要看看答案好不好玩]]></description>
 <link><![CDATA[http://doggiehome.com/read.php?tid=82908#549717]]></link>
 <author><![CDATA[逝水汤]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 18 May 2007 09:58:03 +0000]]></pubdate>
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