In the first step, all in all, 711 main, junior middle school, and junior higher schooling were chosen from all 17 areas of Shanghai resident locations

In the first step, all in all, 711 main, junior middle school, and junior higher schooling were chosen from all 17 areas of Shanghai resident locations Another step am selecting school marks within an example school for which 1–2 degree courses are recruited. Among principal education (score 4–6), junior heart and junior large schooling, individual […]