1. the answerRollback information is beneficial to study online because the data back is to develop a person's ability, knowledge, and motivation to learn, and even more attractive. Providing information back to develop aspects of participants, such as developing the capability to write training participants providing information back. Participants are keen to get information back from a friend. Help promote participation in learning between participants and the development of knowledge and can combine to create a learning environment with a familiar interaction between the students and helps support a wide variety of learning occurs because each person may have a friend in online learning education techniques that are different.
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