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870楼#
发布于：2014-01-18 08:38
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![7天勇士[暑]](https://bbs.jd100.com/attachment/medal/8ad8dbd20210831.jpg "7天勇士[暑]"){kind=small}
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871楼#
发布于：2014-01-18 11:02
[s:12呕心
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![20天大作战[2014]](https://bbs.jd100.com/attachment/medal/465e7ccd53045d5.png "20天大作战[2014]"){kind=small}
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872楼#
发布于：2014-01-18 11:02
此帖已被屏蔽 |
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873楼#
发布于：2014-01-18 15:15
如何学椭圆，双曲线，抛物线等，都有什么公式？
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874楼#
发布于：2014-01-18 15:16
zhangmeng0629：如果，有不懂的可里问吗?恩恩，欢迎 |
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875楼#
发布于：2014-01-18 15:17
怎么查找自己想听的课程？
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876楼#
发布于：2014-01-18 21:12
用简单币换取的讲座在那里听？？
（初来咋到，不太懂……） |
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877楼#
发布于：2014-01-18 22:17
tiantianguorizi：用简单币换取的讲座在那里听？？同学你好，在简单币资源里看，链接为：http://www.jd100.com/user/materialdownload/ 可以在自己的学习中心里找到入口O(∩_∩)O哈！ |
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878楼#
发布于：2014-01-18 22:52
用简单币换取的讲座在那里听？？
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879楼#
发布于：2014-01-19 12:26
在这个世界，没有不平的路。不要说路不平，只能说你不行；到底行不行，看你停不停；只要你不停，早晚都能行！
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