1. Teachers: Single-recruit training institutions in provinces and cities will have more high-quality teachers, because there are more funds and resources to attract excellent teachers, while single-recruit training institutions in counties are relatively weak in terms of teachers.

2. Student level: Single-recruit training institutions in provinces and cities will attract more outstanding students, because the teaching quality and reputation are higher, while the single-recruit training institutions in county towns are facing the problem of relatively low student level.