According to the civil service examination network, PetroChina Dalian has chosen the shortlisting ratio of 1: 3 to 1: 8. The interview ratio of PetroChina Dalian is 1: 3 to 1: 8, so as to better screen talents, reduce interview pressure, evaluate the ability and quality of candidates, and promote fairness and objectivity in the recruitment process. This setting can ensure the recruitment of the most suitable talents and improve the recruitment effect and quality.