zhuhong12345678的个人空间

zhuhong12345678：太拽了··············· 打死我都想不出来·················(2011-06-01 12:17)

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zhuhong12345678：谢谢~~~辛苦咯~~ (2011-06-01 12:16)

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dabing258：[附件](2011-05-31 21:33)

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zhuhong12345678：已知Sn为等差数列an的前n项和 若a2：a4=7:6 则S7：S3=？(2011-05-31 18:09)

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zhuhong12345678：好吧~~~~~~~~~·(2011-05-31 18:07)

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sunrihai：看不清楚，直接打出来吧(2011-05-31 13:15)

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x050210204：真的看不清楚，等了半天，还不如把题目写出来。(2011-05-31 13:11)

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zhuhong12345678：老师快来！！！！！！！！！！！！！！1(2011-05-31 12:38)

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zhuhong12345678：谁来帮帮我(2011-05-31 00:54)

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zhuhong12345678：各位能看清么？？？内啥··············手机数据线找不到了·············· 用不了·······································大家凑合看哈~~ (2011-05-31 00:41)

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