关键词:农民工:城市hDtXUUwc2biqQwTlwc3T1m3VDz4/qgdNlg3Oi1pBZDA=融入;层次分析法;模糊frqFgDDkiWG/U3OKPRx8tD/hMhztzFRs0RAMk9XF5Vk=理论;神经网络