/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: RogerCheng https://cdn.slidesharecdn.com/profile-photo-RogerCheng-48x48.jpg?cb=1523041032 ¾bÌ–¸ÊÞ•¶à roger ºÚ݆ 88