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感觉物理教学视频非常好
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最新喜欢： zysxxw
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沙发#
发布于：2015-10-07 21:44
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![7天勇士[秋]](https://bbs.jd100.com/attachment/medal/d73ac334c487136.jpg "7天勇士[秋]"){kind=small}
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板凳#
发布于：2015-10-08 12:48
请先熟悉论坛哦：http://bbs.jd100.com/read.php?tid=718797 然后快去参加论坛活动： http://bbs.jd100.com/read.php?tid=743270【2015秋季20天大作战】金秋拼搏正当时！ |
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地板#
发布于：2015-10-08 19:07
交个朋友吧。我也喜欢数学，我是程。
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