Research of the economical effection of the minimum wage system in China 并列题名:Research of the economical effection of the minimum wage system in China Research on the economic effects of excise taxation in China Research on the perfection of criminal instance system in China Research on the construction of rural governance system in China Research on economic transition of the colliery cities in China 并列题名:Research on the economic effects of excise taxation in China Research of the punitive damages system in China Research on the system construction of venous industry in China Research on the theoretical system of the accessory in China