目录摘要、关键词······················································································3第一章绪论·························································································3（一）研究背景················································································3（二）目的及意义·············································································4（三）主要内容················································································4第二章农药残留简介·············································································5（一）农药残留·················································································5（二）产生原因·················································································6（三）目前发展状况···········································································4第三章残留农药···················································································6（一）残留农药·················································································6（二）残存农药的危害············...
