Ruoyu Ling @ruoyu-ling Active 6 years, 8 months ago ActivityProfileSites 0Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Ruoyu Ling posted a new activity comment 8 years, 8 months ago http://eportfolios.fox.temple.edu/ruoyuling/ View Conversation Ruoyu Ling changed their profile picture 8 years, 8 months ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio