Research on China's urban-rural integration development and land market system innovation 并列题名：Research on China's urban-rural integration development and land market system innovation Research on internet finance development and credit system construction Research on internet finance development and SMEs financing innovation Research on commodity trading market development and regulatory system construction Research on idle land policy in urban-rural integration development under the background of rural revitalization strategy Research on the progression of urban-rural integration development in the context of China's rural revitalization strategy