No, by inquiring about official website of the Institute of Mathematics and System Science of China Academy of Sciences, it is known that the re-examination of doctoral students in 2022 is a re-examination of candidates who have passed the written examination (with scores above 60 in all subjects) and reached the re-examination conditions. In accordance with the principle of "comprehensive evaluation, merit-based admission, quality assurance, quality and light weight", talents are selected openly, fairly and justly to ensure the quality of doctoral enrollment. Re-examination is a re-examination of candidates, which comprehensively examines the comprehensive quality and ability of candidates from moral, intellectual and physical aspects.