| File | Date | Type | Size | User |
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Apr 27, 2016 7:02 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 2.90 MB |  yongchen |
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Apr 29, 2014 8:44 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.07 MB | yongchen |