420 (out of 700).

The criteria for determining the entrance line of senior high school entrance examination vary from region to region, and are usually determined by provincial and municipal education examination institutes according to the enrollment plan of local high schools, the number of candidates and the results of senior high school entrance examination. The score line of the investment line will generally be announced shortly after the results of the senior high school entrance examination are announced. Students can find out whether they have reached the investment line by querying relevant information.

The promotion line of senior high school entrance examination has an important influence on students' further studies and employment. If students' grades can't reach the promotion line, it means that they can't enter high school, so they can only choose vocational schools or other non-high school schools to continue their studies. And if students' grades reach or exceed the promotion line, they can choose the appropriate high school to apply for the exam according to their own grades and wishes.

In addition, the promotion line of the senior high school entrance examination is also related to the direction of students' further studies. If students want to enter a key high school or prestigious school, they usually need a much higher score than the promotion line. Therefore, students need to make great efforts in preparing for the exam and strive for better grades, so that they can have more choices when they go to school.

Introduction of senior high school entrance examination:

The senior high school entrance examination usually includes three subjects: Chinese, mathematics and English, as well as comprehensive examinations in politics, history, geography and physics, chemistry and biology. The senior high school entrance examination is difficult, so students need to improve their knowledge and ability in preparing for the exam. The senior high school entrance examination is usually held in June, and the examination forms are divided into written examination and oral examination.

The results of the senior high school entrance examination have an important influence on students' future development. The results of the senior high school entrance examination are not only an important basis for students to enter high school, but also an important reference for students to participate in various competitions and apply for scholarships. Therefore, students need to take the senior high school entrance examination seriously, fully prepare and review, and strive for excellent results.