Qujing institutions should buy Zhonggong or Xiangshan for the exam.

Zhonggong pays more attention to public institutions, and Xiangshan pays more attention to teacher recruitment examinations, so it is better to choose public institutions.

Shanxiang's teaching materials are good. Shanxiang is the main brand for teachers to recruit teachers. Public examinations in China public schools are more professional. Recruitment has only developed in recent years, and sometimes teachers may not keep up.