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 <title><![CDATA[一个数学难题（至少我想不出来）]]></title>
 <link><![CDATA[http://www.sjft.com/bbs/read.php?tid=23789]]></link>
 <description><![CDATA[Latest 20 replies of 一个数学难题（至少我想不出来）]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[．．．偶先哭个先　　在学校里　偶还算是个风云人物　　呼风唤雨什么的倒还不成问题　在这里都是浙大的哥哥姐姐们　　郁闷个．．．]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221175]]></link>
 <author><![CDATA[编号89757]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Tue, 13 Jun 2006 05:54:37 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[两次三角形法！这个应该是初中必须会的东西。]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221146]]></link>
 <author><![CDATA[airflyer]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Sun, 11 Jun 2006 06:59:47 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[引用第7楼编号89757于2006-06-05 22:40发表的“”:
拜托  偶才 初二
......拿绳子挂不算数学方法吧]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221110]]></link>
 <author><![CDATA[xbox]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Fri, 09 Jun 2006 11:36:32 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[拜托  偶才 初二]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221039]]></link>
 <author><![CDATA[编号89757]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Mon, 05 Jun 2006 14:40:32 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[这问题 太容易了吧 只要正常毕业的都会啊]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221033]]></link>
 <author><![CDATA[airflyer]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Mon, 05 Jun 2006 14:28:56 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[算咯 &nbsp; 我来说出最简单的方法
1取一条绳子系在四边形纸板的一个顶点
2等纸板平衡，过该顶点做出与地面垂直的线
3换一个顶点重复1、2
4两条线的交点即是重心]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221032]]></link>
 <author><![CDATA[编号89757]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Mon, 05 Jun 2006 14:24:23 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[引用第1楼xbox于2006-05-31 18:21发表的“”:
拿绳子挂几次

这种方法要试到多少次 ？]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221031]]></link>
 <author><![CDATA[编号89757]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Mon, 05 Jun 2006 14:22:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这不算难题吧]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221029]]></link>
 <author><![CDATA[xiaoqiang0903]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Mon, 05 Jun 2006 14:08:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[1。连接一条对角线，将凸四边形分成两个三角形
2。取两三角形重心（略），并连接线段
3。以两个三角形面积之比分该线段
此分点即凸四边形之重心。]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=221028]]></link>
 <author><![CDATA[xiaoqiang0903]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Mon, 05 Jun 2006 14:07:28 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[拿绳子挂几次]]></description>
 <link><![CDATA[http://www.sjft.com/bbs/job.php?action=topost&tid=23789&pid=220899]]></link>
 <author><![CDATA[xbox]]></author>
 <category><![CDATA[水上乐园]]></category>
 <pubdate><![CDATA[Wed, 31 May 2006 10:21:54 +0000]]></pubdate>
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