The online course of public education in China is distance teaching, and the characteristics of distance teaching are as follows: 1. Free learning and selective learning, that is, students can skip other courses directly if their own learning is weak.

Second, to ensure that the number of famous teachers is limited, how to ensure students' requirements for famous teachers?

Third, the cycle of lectures, students can attend classes indefinitely, which can fully meet the learning requirements of students.

Fourth, the cost is low, just study at home, and reduce the fare and other expenses.

Fifth, the time is flexible, and you can learn with the newspaper.

The face-to-face course is characterized by classroom teaching. Students can communicate face to face with lecturers and other students, and the learning atmosphere is rich. For those candidates who have no self-control and have plenty of study time, face-to-face teaching is better.