Research on the theory and system of taxpayer's rights protection 并列题名：Research on the theory and system of taxpayer's rights protection Research on the theory and system of ecological civilization Research on the legal system of cultivated land protection Research on the theory and practice of community correction Research on the policy and system of farmers' cooperatives Research on the theory and system of fiscal law Research on the theory and practice of China's property rights market Research on the theory and method of brand value evaluation Research on the theory and policy of finance and taxation