@tyuan73United StatesFollowAboutEducationPeking University, PekingBadgesProblem SolvingVerified SkillsCertificate: Problem Solving (Basic)VerifiedCertificate: Problem Solving (Intermediate)VerifiedCertificate: Problem Solving (Advanced)VerifiedWork Experiencetyuan73 has not updated employment details yet.EducationPeking University, Peking