Which is better, hanging it up or sending it down?

It is a way for cadres to exchange and learn today. Attachment means that grassroots cadres go to higher authorities to study and exercise, and dispatch means that higher authorities send cadres to grass-roots posts to study and exercise. This way of communication can broaden the horizons of cadres and improve their ability to solve problems, and sending cadres to the grassroots can better understand the hardships and difficulties of grassroots work, which is of great benefit to promoting the work.