According to the examination requirements of the Ministry of Education and the Municipal Epidemic Prevention Group, regular test sites and reset test sites were set up. Among them, candidates with Tianjin health code "green code", negative proof of nucleic acid detection within the specified time and normal temperature measurement take the test at regular test sites. COVID-19 positive infected persons and their close contacts, close contacts, or Tianjin health code "red team", or in a state of centralized isolation, home isolation, or in a closed control area, and can not provide relevant nucleic acid test certificates, because of certain risk of epidemic spread, it is stipulated that candidates should not take the test at regular test sites, but should take the test at the re-set test sites, so as to achieve "one test for all".