Research on the evaluation of the implementation of the new type of rural social assistance system Research on the composition and implementation of the right to social assistance Research on the mechanism optimization of the rural social assistance 并列题名：Research on the composition and implementation of the right to social assistance Research on social adaptation of adolescents in placement and educational assistance system Research on the evolution of the airport city composite system Research on the function orientation of subsistence allowance system Research on the reconstruction of the demand-oriented competitive rural financial system