The previous national volume 1 was the most difficult. I used to use it in the college entrance examination in Henan province, but now it seems that I don't use it much.

At present, the new curriculum standard national volume is mainly used. I am the second edition of the national volume of the new curriculum standard (Henan 12). At present, the national volume of the new curriculum standard is generally applicable to Henan, Hebei and other college entrance examination provinces, and there is a trend of further expansion. In such a large examination province, the examination paper requires a certain degree of discrimination, so more consideration is given to calculation and thinking. Before 20 1 1, Henan Province used the national volume 1. At that time, the admission score of Tsinghua Peking University was around 650. We used the national examination paper for the first time in the previous college entrance examination, and the admission score of Tsinghua Peking University was around 680, so we can imagine the difference between the two sets of examination papers.

In fact, the most difficult thing is the Jiangsu volume, and Jiangsu's inspection ideas are in place.