Zhen Li @zhen-li Active 3 years, 6 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, 1 month ago Zhen Li's profile was updated 4 years, 1 month ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio