83%. According to the statistics of Zhihu, the online rate of a book in Yanliang Guanshan Middle School is 83%. Guanshan Middle School is located in Guanshan Town, yanliang district, Xi City, which is15km east of "Aircraft City" and covers an area of nearly 100 mu. History of running a school Guanshan Middle School was originally affiliated to Lintong County, and it is one of the earliest middle schools in the history of education in Lintong County. After its establishment, it was renamed several times.