Research on the optimization path of China's cruise industry structure from the perspective of comprehensive tourism Research on the operating mechanism of Chinese cultural and creative industries from the perspective of cooperative innovation Research on the agglomeration development of Hainan tourism industry from the perspective of free trade port Research on the termination system of contracts from the perspective of comparative law Research on the transformation and upgrading of Liaoning industrial structure from the perspective of trade structure optimization Research on the adaptation of Chinese internal migrants from the perspective of social media Research on the upgrading path of equipment manufacturing industry in northeast China from the perspective of cross-border innovation networks Research on the construction of Chinese online education system from the perspective of lifelong learning for all Research on the evolution of China's distribution system from the perspective of history of economic thought Research on the functional defects of China's capital market from the perspective of cost of capital