According to the inquiries of celebrities. Yu, principal of Fengtai District Primary School, is a senior teacher and a special math teacher.
Yu, male, Han nationality, born in Zibo, Shandong Province, is a national training expert for primary and secondary school principals of the Ministry of Education, and a senior professional title evaluation expert in Beijing.
Now, Juck Zhang and his teacher have better described the methods of judgment and reasoning.
Deng saw two levels.
Cai saw level five.
I fee