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"1. Lack of systemicity. Brownsville Academy Store Online courses are rich in resources, but learning resources are relatively scattered and lack of understanding of a subject system.\n2. It has high requirements for learners' autonomous learning ability. Because there is no classroom restraint, learners are required to have the ability to actively think independently and practice to deepen their knowledge."
<https://www.youronlinecourses.org/brownsville-academy-store>