Not easy to test. In the difficulty of the college entrance examination 100, Nankai University ranked 16. The difficulty value is 93.38. Secondly, in the classified ranking of graduate students published by China Science and Education Evaluation Network, Nankai University's mathematics ranked 4 in 202 1, so it is difficult to test. Nankai University, referred to as "Nankai" for short, located in Tianjin, is a national key university directly under the Ministry of Education of China and a national "double-class" construction university.