Eighty minutes. According to the inquiry of Zhongning County People's Government, the minimum admission score of Zhongning County in 23 years is 65, while the teaching score is higher than 80, and the scores of posts in Yinchuan area are higher than those in other regions. "Three supports and one support" means that college graduates go to teach, support doctors, support agriculture and help the poor, and promote the development of rural grassroots social undertakings.