ICS 03.080CCS A 12中华人民共和国国家标准GB/T 44191—2024政务服务便民热线知识库建设指南Guidelines for the construction of knowledge base of government services hotline2024-06-29 发布2025-01-01 实施国家市场监督管理总局国家标准化管理委员会发 布目　　次前言 ·················································...