1. Online education has no limit on study time. Due to the fast pace of life of modern people, especially the busy working staff, it is difficult to squeeze out a lot of time to continue their studies. The openness of the Internet determines that online information resources can be shared at any time, thus getting rid of the strict requirements of traditional education for study time and requiring scholars to arrange study time according to their own needs.

2. Online education has no restrictions on the place of study. Network education provides equal opportunities for scholars to enjoy educational resources, makes school education break through geographical boundaries and greatly improves the utilization rate of educational resources.

3. Online education has no restrictions on the student base. Each student's knowledge base is different, and his learning progress is also different. Online education can provide personalized services for different students. Students can browse all online courses first, and then freely choose the starting point of learning.

4. Online education has no restrictions on the conditions for running a school. The quality and quantity of traditional education are largely restricted by the conditions of running a school, while online education is different. Screen classroom can make the number of students no longer restricted, and the number of teachers is unprecedented. Teachers from different schools can teach jointly, and teaching materials appear in multimedia forms such as pictures, words, sounds and videos, which can greatly improve students' interest in learning.

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