Qiao ji 2000 ying yu dan ci/ Kan man hua xue ying yu dan ci. Ri yu kao ji bu yong bei dan ci / AutoCAD 2000 ying yong jiao cheng/ Yang jing rong jiang gu tao ci/ Qie mo diao jin ying yu xian jing. Mi nan gong mu lan ci/ Yan jiang yu zhi ci/