7 to 30 days. Official website, the website of Minhang District People's Government, shows that the known imported talents are waiting for pre-examination, and the pre-examination must be publicized within 7 to 30 days. Talent introduction refers to the need of work. Local units employ on-the-job personnel from other provinces and cities, and have been employed for a certain number of years, and their academic qualifications are higher than the minimum requirements for the introduction of local talents.