For example, if you want to learn the teaching platform of psychology, there are mainly excellent competitions.

Want to learn the platform of teaching resources, mainly public * * *, test worms, chalk, class teachers and so on.

If you want to take part in the postgraduate entrance examination, you can choose online teaching platforms, including: public schools, test insects and chalk.

There are also teaching platforms for learning small languages, such as Sunshine Foreign Language, Starlight Foreign Language, Foreign Language, Youdao and Morning Class. ...

There are many, many companies that study various types of online course teaching platforms. You can choose according to your favorite related aspects. And if the economic conditions are not particularly good, you can find more relevant platforms to compare. Personally, I think it's best to find the course that, uh, pays tuition, but allows you to pack. If you can't take the exam or something, then it will, uh, refund all the money.