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 <title><![CDATA[3N*N +2N=100&nbsp;&nbsp;用plc求出N的值]]></title>
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 <description><![CDATA[Latest 50 replies of 3N*N +2N=100&nbsp;&nbsp;用plc求出N的值]]></description>
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 <description><![CDATA[[s:28] 我也迷糊 了，想岔了...]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99843#999561.html]]></link>
 <author><![CDATA[zhangli019]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 25 Mar 2011 03:16:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99843#999462.html]]></link>
 <author><![CDATA[etdssdabb]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 25 Mar 2011 01:11:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如1楼所说，进行相关运算。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99843#999124.html]]></link>
 <author><![CDATA[qlin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 24 Mar 2011 12:47:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[把算式转换一下嘛，按1楼的方法做]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99843#999104.html]]></link>
 <author><![CDATA[ysheng9099]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 24 Mar 2011 12:31:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上说的对...]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99843#998652.html]]></link>
 <author><![CDATA[zhongxin0512]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 24 Mar 2011 02:50:11 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不是有求解公式的么？ax*x+bx-c=0，X=(-b± √b*b-4ac)/2a,你整理下就可以知道了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99843#998647.html]]></link>
 <author><![CDATA[hxl202319]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 24 Mar 2011 02:48:01 +0000]]></pubdate>
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