First, check whether the account and password you entered are correct. If they are correct, you still can't log in. It may be that there are too many people logging in at present, which makes the server unbearable. You can log in again later. In addition, if the official is carrying out system maintenance, it is also impossible to log in.
Take the exam. Com is an educational APP developed and operated by Nanchang Chuanai Network Technology Co., Ltd., and its training includes upgrading academic qualifications, second-level construction engineer, accounting qualification certificate, teacher qualification certificate, securities qualification certificate, banking qualification certificate, futures qualification certificate, fund qualification certificate, online learning of adult correspondence education and online learning of self-study exam.