Conditions for promotion. Participating in the training of middle-aged classes means that you have basically reached the conditions for promotion and are candidates for reserve cadres. At the same time, attending middle-aged class training is also a kind of vocational skills training, which aims to help students master new skills and innovative thinking, and improve their comprehensive quality and employment competitiveness. In addition, the training of middle-aged classes also provides a good learning environment and practical opportunities, which can open up ideas and increase practicality. From the middle school class, a considerable proportion of students in this class finally became provincial and ministerial officials. Therefore, it is a rare opportunity to participate in the training of middle-aged classes, which can bring many benefits to personal career development.