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very good

Posted by frkstyc at 2006-03-25 02:38:39 on Problem 1700
In Reply To:http://www.oursci.org/magazine/200204/020411-01.htm Posted by:chgsh8089 at 2006-03-25 02:35:08 
> http://www.oursci.org/magazine/200204/020411-01.htm
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