并列题名：Research on the data property right system based on the construction of “digital cities” Research on the data property right system based on the construction of “digital cities” 并列题名：Research on the legal and ethical problems of the construction of clinical research hospital 并列题名：Research on the development of public art in the construction of public cultural service system 并列题名：Research on participatory budgeting based on the construction of public budget in China 并列题名：Research on the rule of law model of government promoting the construction of social credit system