Reliable. According to the inquiry data, Qiu Chong's online course was created by the seniors of Qingbei, providing extracurricular teaching of nine subjects for junior and senior high school students, creating a teaching perspective that seniors teach students with a group of students. Innovate and refine the teaching mode of the three normal colleges, break the geographical restrictions, make everyone learn, promote the balance of education, and help students get high marks for further studies. Qiu Chong's online courses are of high quality, and many students can improve their grades. The enterprise is legally registered and certified by the Ministry of Industry and Information Technology, holds formal and legal business documents, and is a legal enterprise, so it is reliable.