1, easy to understand. Explain complex concepts clearly and easily in plain language.

2. Rich in content. There is no nonsense in the whole process, all of which are needed knowledge points.

3. The design is novel and close to the facts. It can help learners to check and fill gaps and improve learning efficiency.

4. Qidong Hongzhi Education is a training institution focusing on adult education and adult postgraduate entrance examination, located in Qidong, Jiangsu.