/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ssuser3de245 https://cdn.slidesharecdn.com/profile-photo-ssuser3de245-48x48.jpg?cb=1523537356 ÓÆÔյĹýÒ»Éú