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这纯属我的主观臆断……当我没发过 -,-

Posted by rovingcloud at 2007-03-06 18:36:31 on Problem 2126
In Reply To:题目说了系数一定要是实数吧?这样分解符合题意么? Posted by:rovingcloud at 2007-03-06 01:25:20


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