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This theoretical analysis and empirical research will combine the use of survey research methods, through observation, interviews, documentation collection, data acquisition, the typical form of investigation and sampling survey to collect data and statistics literature.

Theoretical analysis and empirical research on this article combines investigation methods, through observation, interview, document collection, typical investigation and data collection, sample forms, such as collection of documentation and statistics.

This article unifies the theoretical analysis and the real diagnosis research, uses the investigation and study the method, through form collection literature materials and statistical data and so on observation, interview, literature collection, data acquisition, typical survey and sample investiga

This article will be combined with theoretical analysis and empirical research, applied research methods, through observation, interviews, documentary collection, data collection, such as scrap and sample forms collected bibliographical information and statistical data.

Theoretical analysis and empirical research on this article combines investigation methods, through observation, interview, document collection, typical investigation and data collection, sample forms, such as collection of documentation and statistics.