GB/T 33782-2017信息技术学习、教育和培训教育管理基础代码国家标准
英文:Information technology—Learning, education and training—Educational management general codes GB/T 33782-2017介绍: 国家标准《...
英文:Information technology—Learning, education and training—Educational management general codes GB/T 33782-2017介绍: 国家标准《...