| File | Date | Type | Size | User |
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Feb 7, 2016 9:10 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.52 MB |  yongchen |
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Feb 17, 2014 11:51 am | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 2.40 MB | yongchen |