The difference is that the gold content of the self-taught examination is higher than the latter two, and the cost of the self-taught examination is also cheaper than the latter two, but the relative examination is more difficult. Adult education and online education are better than night school. Online education is the most expensive, because as long as you pay the tuition, you don't have to take the exam in class, and you can get your diploma in two and a half years. Adult teachers only need to take the entrance examination once. After this time, I will pay my tuition in three years and get my diploma in two and a half years.

But this year, I heard that there was a reform and there was no online education.

(I hope the landlord will adopt it)