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这不是老题吗?差评!! Tesla35 发表于 2014-6-20 20:00
回复 kuing 原来如此?那就改为2013吧, 已知$a_i\in[-2,2],i=1,2,\cdots,2013$,且$a_1+a_2+\cdots+ ... 其妙 发表于 2014-6-20 20:37
$\LaTeX$ formula tutorial Reply post To last page
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2025-7-21 21:42 GMT+8
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