Is the spring recruitment interview difficult for the 35 institutes of China Aerospace Science and Industry Corporation?

The spring recruitment interviews for the 35 institutes of China Aerospace Science and Industry Corporation are difficult. According to the query of relevant public information, the comprehensive interview arranged by the Third Aerospace Academy requires a unit examination and three years of work experience. The conditions are very demanding and very difficult. The Third Research Institute of China Aerospace Science and Industry Corporation is my country's high-tech scientific research and production base for research, design, trial production and production of aircraft.