1. The registered residence of the enrolled students is the same as that of their parents and family houses, and they are all in the school district, or the registered residence of their grandparents or grandparents is the same, and they are all in the school district. The enrolled students have settled in their grandparents' home since their birthdays.
2. The enrollment object has school district household registration, but it does not belong to the above categories.
3. The enrollment object is a non-school district household registration, but the enrollment object himself or his parents have legal property housing in the school district.