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[不等式] 请教不等式问题

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wenshengli Posted 2015-5-9 10:29 |Read mode

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Author| wenshengli Posted 2015-5-9 10:30

回复 1# wenshengli
请教2,3问，谢谢！

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活着＆存在 Posted 2015-5-10 09:41

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kuing Posted 2015-5-10 14:12

bbs.pep.com.cn/forum.php?mod=viewthread&tid=1417215
bbs.pep.com.cn/forum.php?mod=viewthread&tid=2660749

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活着＆存在 Posted 2015-5-11 08:24

关键是正确理解题目意思，但是题目本身又没表述清楚，十分坑。好象读书时候听老师解释过，当初竟无言以对，现在忘记什么意思了。

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