Reliable. According to a friend's survey, Chongqing Dacheng Education is a professional educational institution focusing on junior high school and primary school education. It has a formal business license, provides cultural courses, composition courses, horse English and other courses, and has a group of excellent full-time teachers. Chongqing, referred to as "Chongqing" or "Mountain City" for short, is a municipality directly under the Central Government of the People's Republic of China, a national central city and a megacity.