1. Due to China's vast territory and rich resources, the economic development in different regions is quite uneven, which also makes the education development very different, which is also the main reason for the difference in college entrance examination scores between the two provinces.

2. Differences in the number of institutions. Because education is not for profit, especially higher education. Generally speaking, the source of funds for colleges and universities is local (that is, province), followed by the Ministry of Education or other departments. If there are more colleges and universities in Zhejiang than in Hubei, there will be a big gap between the scores of college entrance examinations in these two provinces.