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 <description><![CDATA[看情况，具体问题具体分析！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64278#787526.html]]></link>
 <author><![CDATA[haoweng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 18 May 2010 00:56:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[常开常闭都可以的。。。看你工程的需要而定。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64278#787524.html]]></link>
 <author><![CDATA[pretco123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 18 May 2010 00:55:32 +0000]]></pubdate>
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 <description><![CDATA[输入点的状态无所谓是常开或常闭，只要你程序与之相对应上就行。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64278#787433.html]]></link>
 <author><![CDATA[dbguanxu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 17 May 2010 14:54:50 +0000]]></pubdate>
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 <description><![CDATA[[s:32] yun]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64278#787274.html]]></link>
 <author><![CDATA[从容面对一切]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 17 May 2010 12:24:40 +0000]]></pubdate>
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