Winter in 202 1 or spring in 2022. The sampling time of doctoral thesis in Chongqing in 20021year will be in the winter of 20021year or in the spring of 2022. Requirements for doctoral thesis of Chongqing University.

1, three Nanda core icons.

It is necessary to publish a high-level periodical.

3. To publish two papers in cssci journal database at the same time, Chongqing University must be the first signatory.