/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: shiengwang https://cdn.slidesharecdn.com/profile-photo-shiengwang-48x48.jpg?cb=1523525792 Ðú»©Éϵȡ¡Ò¹Â¶ËÀ¿à