| File | Date | Type | Size | User |
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Jan 20, 2016 9:26 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 3.20 MB |  yongchen |
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Jan 27, 2014 6:14 pm | Microsoft Powerpoint Document (application/vnd.ms-powerpoint) | 5.82 MB | yongchen |