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- UID
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- 注册时间
- 2011-7-11
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- 2014-8-7
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I found the section harder than my "usual" comfort zone, scored 50-70 on it which was expected
the dummy variable question really got me confused
Edited 1 time(s). Last edit at Friday, July 29, 2011 at 03:54PM by passme. |
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发表于 2011-8-13 17:47
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