/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: maggieyu0619 https://cdn.slidesharecdn.com/profile-photo-maggieyu0619-48x48.jpg?cb=1523380726 ÎÒÊÇË«×ÓĪĪ