100%
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不知怎么的，我听数学总是似懂非懂的，求大神支招
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100% |
![49天勇士[秋]](https://bbs.jd100.com/attachment/medal/62380d144806ce9.jpg "49天勇士[秋]"){kind=small}
![42天勇士[秋]](https://bbs.jd100.com/attachment/medal/2d9e801cfb776ea.jpg "42天勇士[秋]"){kind=small}
![35天勇士[秋]](https://bbs.jd100.com/attachment/medal/9711324dad47033.jpg "35天勇士[秋]"){kind=small}
![28天勇士[秋]](https://bbs.jd100.com/attachment/medal/43e810e25ab4f7c.jpg "28天勇士[秋]"){kind=small}
![21天勇士[秋]](https://bbs.jd100.com/attachment/medal/541a6942efb56d6.jpg "21天勇士[秋]"){kind=small}
![14天勇士[秋]](https://bbs.jd100.com/attachment/medal/295c62a2b4d041f.jpg "14天勇士[秋]"){kind=small}
![7天勇士[秋]](https://bbs.jd100.com/attachment/medal/d73ac334c487136.jpg "7天勇士[秋]"){kind=small}
![20天大作战[2015]](https://bbs.jd100.com/attachment/medal/cec543c13f7ea1b.jpg "20天大作战[2015]"){kind=small}
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沙发#
发布于：2015-09-23 12:14
我数学很好
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板凳#
发布于：2015-09-23 12:14
有不懂得可以问我
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地板#
发布于：2015-09-25 21:34
上课要认真哦.
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4楼#
发布于：2015-12-24 19:08
同感。。。。
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