A US federal welfare programme, originally set up in 1935, that enabled states to use federal grants to provide financial support for poor children. AFDC was replaced in 1996 by Temporary Assistance to Needy Families.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。