Jie Gao @jie-gao Active 1 month, 2 weeks ago ActivityProfileSites 1Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Jie Gao's profile was updated 6 months, 3 weeks ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio