Choose according to your own needs. At present, there are many E-type online courses in the market, among which a good online course should have the following characteristics: comprehensive and systematic teaching content, simple explanation, high quality teaching videos and materials, mock examination and answering service, and reasonable price. Recommend some well-known E-type enterprises to write online courses, such as painting education, Chinese public education, civil service examination network and so on. In addition, candidates can also choose their own online courses according to their own needs and budgets.