NTU Core: China Social Science Research and Evaluation Center of Nanjing University, which organizes evaluation every two years.

1. national level: in domestic legal publications, the competent units are ministerial-level units (such as the Ministry of Education and the Ministry of Science and Technology), that is, the national level, and the competent units are China xx Group and China xx Society, that is, the national level II.

2. Core journals: Some units, groups or organizations are core journals after a certain screening process from national legal journals. For example, the periodicals included in the core of Peking University are called the core periodicals of Peking University. There are both national and provincial periodicals, some of which are strictly municipal (some people don't recognize the municipal statement and think that domestic periodicals are at least provincial).

Hope to adopt, thank you.