/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: EricGu1 https://public.slidesharecdn.com/v2/images/profile-picture.png 1993-1996,Ì«²ÖÊÐÒ»ÖÐ 1996-2000,¶«ÄÏ´óѧ 2002-,Cisco-Webex