On the one hand, the self-taught university is a private university recognized by a few countries. It is registered in the Ministry of Education and can be found on the website of the Ministry of Education. Moreover, the self-study university was named by Comrade Deng Xiaoping, so it must be recognized by the state. .
The second reason is that we all know that edu is registered by the Ministry of Education, and only schools can own the website of edu. Therefore, as long as the website of the last school in official website is followed by edu, all universities recognized by the state can take the exam.
I hope I can help you.