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Difficulties that may be encountered in the research (1) The number of investigation areas is large and the span is wide. It is difficult to gain personal power at close range. (2) Personal efforts and research level are limited, and teachers need professional guidance to construct the theoretical structure. (3) Due to copyright restrictions, most foreign documents and reference materials come from China. (D) For confirmatory factor analysis, the theory is still in the learning stage and there is no specific implementation experience.