Is Xi 'an Siyuan High School the worst?

No, according to official website, Xi 'an Siyuan High School, the school is directly affiliated to the middle school of Xi Jiaotong University, with profound cultural background. Shaanxi high school ranking 15, not the worst. The school is a member school of Shaanxi Standardized High School, Shaanxi Civilized Campus and the middle school affiliated to xi Jiaotong University.