Is it better for CAO to recruit a written test?

The entrance examination of China Aviation Oil School is not so good. According to the relevant public information, the campus recruitment examination of PetroChina is not difficult, but in recent years, the number of applicants for the petroleum system school recruitment has been increasing and the competition has become increasingly fierce. The number of finalists in the primary written test has also increased accordingly. Therefore, the campus recruitment examination of PetroChina is not so good.