Because the situation in each region is different, for example, the papers used are different, the number of people taking the exam is different and so on. Moreover, the admission score is determined according to the ranking, and the admission rate of one book and two books in each region is different, resulting in different scores.

Generally speaking, in the same area, if the test paper is difficult as a whole, the admission score will be reduced; If the overall test paper is relatively simple, the admission score will be improved.

Extended data:

National volume classification

1, Volume A of National New Curriculum Standards.

20 15 and before: Guizhou, Guangxi, Qinghai, Tibet, Heilongjiang, Jilin, Ningxia, Inner Mongolia, Xinjiang, Yunnan, Liaoning (comprehensive), Hainan (Chinese, mathematics, English);

20 15: Liaoning (Chinese, Mathematics, English) was added; ?

20 16 new provinces: Shaanxi and Chongqing; 20 16 Cancelled provinces: Guangxi, Yunnan and Guizhou;

Province cancelled on 20 18: Tibet;

Provinces used since 20 18: Chongqing, Shaanxi, Gansu, Ningxia, Qinghai, Xinjiang, Heilongjiang, Jilin, Liaoning, Inner Mongolia and Hainan (Chinese, Mathematics and English).

2. National B New Curriculum Standard Volume I

Provinces used before 20 15: Henan, Hebei, Shanxi, Shaanxi (comprehensive language), Hubei (comprehensive language), Jiangxi (comprehensive language) and Hunan (comprehensive language); ?

20 15 Increased use of provinces: Jiangxi (Chinese, Mathematics, English) and Shandong (English);

20 16 Newly added provinces: Hunan (Chinese, Mathematics, English, Comprehensive), Hubei (Chinese, Mathematics, English), Guangdong, Fujian, Anhui, Shandong (Comprehensive); 20 16 cancelled province: Shaanxi;

20 17 Add province: Zhejiang (English); ?

20 18 Add the province: Shandong (Chinese, Mathematics).

Provinces used since 20 18: Shanxi, Hebei, Henan, Anhui, Hubei, Hunan, Jiangxi, Fujian, Guangdong, Shandong and Zhejiang (English listening part)