What's the difference between the national volume and the Shandong volume?
Take the national papers together with the whole country, and the level is relatively average. Shandong volume is a problem set by Shandong teaching and research group, which is relatively difficult and low level, especially in mathematics and science. Shandong has many students and is suitable for high scores. In order to unify the score line of Shandong independent proposition, it will be divided. You got it?