How can this happen at Nanguanling Primary School in Dalian?

The gathering place of floating population is the cradle of children of migrant workers. Free of charge for school selection, free of charge for children of migrant workers' families. The government subsidizes running schools. Students' starting points are uneven, and they will go to the city to study if they can. After all, Nanguanling is still Nanguanling town, and the per capita quality is still a little poor.