Abstract
With the development of information technology, it is possible to extract and apply big data, and it is also the first time that the samples and the whole of scientific research are combined and become the same concept. This study takes big data as the starting point, and deeply discusses the key and difficult problems of Freshmen in the process of online audio-visual. The conclusion is conducive to the smooth progress of online audio-visual curriculum reform, and also has certain guiding significance for students' learning and teachers' guidance.
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