并列题名：Study on the legalization of China's tax policy under the system of WTO Study on the legalization of China's tax policy under the system of WTO 并列题名：Study on the legalization of ethnic policies in the Qing dynasty 并列题名：Study on the legalization of current letters & calls system 并列题名：Analysis on the effect of China's monetary policy under the open condition Study on the legalization of ethnic policies in the Qing dynasty 并列题名：Study on the equalization effect of tax-sharing fiscal system 并列题名：Study on the legal system of Chinese government investment 并列题名：Empirical study on the evolution of urban renewal policy under the background of marketization 并列题名：Study on the effectiveness of China's industrial policy under the circumstance of economic globalization