Eight zeros. Players enter the competition by downloading Harbin Railway Vocational Education, and choose the 2022 Harbin Automobile Young Workers Knowledge Competition to answer questions. The user name is the last six digits of the name+ID number, and the initial password is eight zeros. Harbin Railway Vocational and Technical College, located in Harbin, Heilongjiang Province, is a high-level vocational school with China characteristics and a professional construction planning institution.