It means that if there are vacancies in some positions, candidates can apply for them again. These vacant positions are those abandoned by other candidates or not filled for some reason. The release and application process of these vacant positions is the same as the original recruitment positions, but the number and opportunities of these positions are relatively small and the competition is more intense. In the make-up exam of the national tax major, if the candidates have not registered or been admitted before, they can take the make-up exam, but they need to meet the corresponding conditions, such as registration conditions and academic qualifications. At the same time, it should be noted that there are relatively few duplicate jobs and the competition is relatively large. Therefore, we should make preparations in advance, improve our competitiveness as much as possible, and increase the chances of getting duplicate jobs.