| File | Date | Type | Size | User |
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Apr 7, 2016 6:01 am | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 2.38 MB |  yongchen |
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Apr 29, 2014 8:05 am | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 1.34 MB | yongchen |