| File | Date | Type | Size | User |
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Mar 24, 2016 11:55 am | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.89 MB |  yongchen |
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Apr 13, 2014 2:50 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.22 MB | yongchen |