The super model test is more difficult than Lankao. The Supergrid Model Test is an exam simulation test in the Supergrid Education APP under Supergrid Education. Chao Ge Education is affiliated to Beijing Chao Ge Hengxin Education Technology Co., Ltd., which was established on 20 17. It is an online education and training brand based on the mobile Internet. Its business covers public examinations such as civil servants, teachers, institutions, three supports and one support, and serves users through online live courses and teaching services.