Many schools have an English test after entering school, and then take classes according to their grades; There are also schools that have to take math exams after entering school. Another main purpose of these exams is to check whether there are fakes. If the results are seriously inconsistent with the results of the college entrance examination, they will be refused admission.

Sophomore students can change their major. Generally, the school depends on your freshman grade. If you do well in your freshman year, you can avoid the written test. If your grades are not good, you must take a written test and pass it before you can participate in the interview.

Regarding placement, in fact, most schools have placed classes before you entered the school newspaper, and even dormitory beds have been allocated. Generally speaking, I won't re-divide my major immediately, because freshmen are basically basic courses, and everyone's classes are similar. Only when you are in your junior year and senior year will you be divided into professional directions.

After entering the university, your high school score is 0, and the school doesn't need to take the test again, so you won't enter the school to take the high school level test immediately and then divide classes; That's just asking for trouble. It's pointless. Unless there is a math and physics class in Tsinghua, which is an Olympic champion or something, some people will be selected from the freshmen after entering the school.

There is an excellent engineer class in the School of Electrical Engineering and the School of Mechanical Engineering, which is selected according to your performance after your freshman year, and then a student is given 6,543,800 yuan for training.