/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: HsuehWilliam https://cdn.slidesharecdn.com/profile-photo-HsuehWilliam-48x48.jpg?cb=1634699269 Hello ! ½oÄãÒ»‚€×ÔÐÅµÄ“í±§