Dr. Liu has been our director since October 2016. Since April 2011, Dr. Liu has been our senior vice president and once headed our teaching and research division, teacher’s training school, information management center and network operation center. Prior to this, Dr. Liu was in charge of our online course offerings between January 2008 to April 2011. From September 2005 to January 2008, Dr. Liu was director of our middle school division. Dr. Liu received his bachelor’s degree in mechanics from Peking University in 2003 and his Ph.D from the institute of Mechanics of the Chinese Academy of Science in 2008.