Research on the development path of Hainan international tourism consumption center Research on the development of China 's international communication Research on the development of international double degree programs Research on the development of new operational type of tourism in China research on the development path of Zhongguancun in the new era Research on the development of rural tourism destinations research on the development of urban-rural integration in the new era Research on the development path of passive ultra-low energy consumption building materials industry research on the development of China's diverse public opinion field Research on China's development path in the evolution of international intellectual property trade network