Zhen Li @zhen-li Active 3 years, 5 months ago ActivityProfileSites 1Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Zhen Li's profile was updated 4 years ago Zhen Li's profile was updated 4 years ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio