From Yang Liwei's resume, we can know that he belongs to the first batch of undergraduate pilots recruited by the Air Force from local high school students. After four years of pre-flight and aviation school study, his administrative level and position should be 22-level deputy company when he graduates. 1988 When the title was awarded, according to the title regulations, his administrative rank and position at that time could only be awarded to the rank of lieutenant.

This is stipulated by the unified policy, and no evidence is needed at all.