/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: wenchines https://cdn.slidesharecdn.com/profile-photo-wenchines-48x48.jpg?cb=1564485040 ÐìÎÄÔÀ - °ÍÎ÷ ¸¸=Ðìʤ³Ç ĸ= ÐìÁõÏãÑ©