If you really want to go to another school, you have to contact the accepted school to get the files back, but it is usually difficult.
You can apply for withdrawal.
But generally speaking, if you don't want to go to this university after being admitted to the university, you can apply for withdrawal. If you are admitted to a university and decide not to go to the admitted institution, you can call the admissions office of the admitted institution to apply for waiver and withdrawal.
Then write an application for waiver and withdrawal, including your name, province of origin, ID number, admission ticket number and reasons for waiver or withdrawal, and fax it to the admissions office of the admitted institution to ask for withdrawal.
If the enrollment process of the batch to which the college belongs has passed, then the college may have to wait until September to give up filing, not now. This is done in order to avoid unnecessary troubles caused by the frequent request of candidates to withdraw the files from the admitted institutions when filling in their volunteers, and the unreasonable increase in the files submitted by the provincial admissions office and the college admissions office.
In fact, when enrolling students in colleges and universities every year, there are scores restrictions for the college entrance examination subjects corresponding to 30 majors in science. If the score of the corresponding subject is insufficient, you will encounter such withdrawal. Especially those colleges with sufficient students, the competition will be fierce. For example, if a candidate applies for chemistry major, the total score meets the requirements and other conditions are met. If the score of chemistry subject is lower than other candidates with the same conditions, he will be dismissed under the principle of priority admission.