The fee is set once every semester for 90 months. Basically, they are announced one day in advance and booked online for one second. It takes superb skill and the best luck to decide the outcome. If you can't book it, buy it from someone else. However, few people sell it at a price of not less than 200 yuan per month, which is one of the seriously scarce resources of Agricultural University. There is a fan and a desk lamp in it, and you can hear the sound of turning over books next door. Very suitable for studying in summer.