Shizhong Yang @shizhong-yang Active 8 years, 2 months ago ActivityProfileSites 1Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Shizhong Yang changed their profile picture 9 years, 1 month ago Shizhong Yang changed their profile picture 9 years, 5 months ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio