XiaoFei Zhao@cndfeifei1Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencecndfeifei1 has not updated employment details yet.Educationcndfeifei1 has not updated education details yet.LinksLinkedinhttps://www.linkedin.com/in/xiaofei-zhao-8a25043a Skillscndfeifei1 has not updated skills details yet.