Answer: Pre-school placement mode: 1. General preschool education institutions. Welfare institutions for disabled children. Rehabilitation institutions for disabled children. Preschool education in ordinary primary schools and preschool education in special education schools 1. Education System Chinese mainland has basically formed a compulsory education system for disabled children and adolescents, with regular classes, special education classes as the main body and special education schools as the backbone. 2. Resettlement Measures Special education schools for the blind, deaf and mentally retarded (auxiliary schools) attend special education classes in regular classes.