Research on the digital development of China's new energy vehicle industry under the background of carbon neutrality Research on the integrated development of tourism and traditional Chinese medicine industry under the background of "healthy China" strategy Research on the development of radio and TV media in China under the background of media convergence Research on effect evaluation of China's new energy vehicle industry policy based on multi-source data Research on the influence mechanism and path of new energy vehicle promotion under the background of double carbon Research on the high quality development of local undergraduate universities under the background of "double first-class" Research on innovative development of human resources in the elderly service industry under the background of aging Research on the sustainable development of social old age insurance system under a background of overall coverage Research on the development of rural education under the background of rural revitalization = Research on innovative development of human resources in the elderly service industry under the background of aging