20 13 national college entrance examination mathematics volume 2 science difficulty
It is more difficult than 20 12. Compared with 20 13, 20 13' s national mathematics volume 2 is more difficult, and it is also a little more difficult than 20 1 1. According to the feedback from candidates and parents, 20 13' s national mathematics volume 2 is more difficult, and the mathematics subject paper is difficult to be scientifically standardized.