...博客 th American Industry Classification System，NAICS）、标准职业分类体系（Standard Occupational Classification System，SOCS）、地理区域划分标准即大都市统计区域和小都市统计区域（Metropolitan and Micropo..
According tooccupation, jobclassification (category: slightly) such as: the humanresourcesmanagerreferencestandard human resources system, enterprisemanagement system standards.