Research on knowledge service of technology-based SMEs from the perspective of value co-creation 并列题名：Research on knowledge service of technology-based SMEs from the perspective of value co-creation Research on Mazu cultural creative tourism from the perspective of value co-creation Research on the coordinated development of northeast all-for-one tourism from the perspective of value co-creation Research on mechanism of technology-based university spin-off value creation Research on college students' social practice from the perspective of education 并列题名：Research on the coordinated development of northeast all-for-one tourism from the perspective of value co-creation Research on urban spatial evolution from the perspective of value chain Research on the inheritance of folk culture from the perspective of school education Research on the root causes of China's technological progress from the perspective of trade commodity segmentation