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zhasan76
Posts: 17
Posted 22:34 Jan 24, 2012 |

Hello Dr. Sun,

.ppt slides are missing from today's(01/24/12) class video.

would you please check it ?

 

Thank You

cysun
Posts: 2935
Posted 09:57 Jan 25, 2012 |

From our technician Yin:

The recorder crashed. Only the video was captured.