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- UID
- 217804
- 帖子
- 274
- 主题
- 141
- 注册时间
- 2011-5-24
- 最后登录
- 2012-9-12
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bpdulog Wrote:
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> Practice problems and watching Stalla videos. I
> must say Dave Hetherington is really good at
> breaking down derivatives into bite sized pieces.
+1. Dave is it. |
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发表于 2011-7-11 19:45
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