Research and application on the digital operation mechanism of agricultural complex 并列题名：Research and application on the digital operation mechanism of agricultural complex Research and application of digital reproduction technology in cultural tourism 并列题名：Research and application of digital reproduction technology in cultural tourism Research on the innovation of organization mode and operation mechanism of agricultural socialization service 并列题名：Research on the innovation of organization mode and operation mechanism of agricultural socialization service Research on the optimization of the collaborative innovation mechanism of agricultural intellectual property in China research and exploration on the internationalization of regional business schools