I go to school in Chengdu, but I have to go back to Chongqing for the college entrance examination to see if I am an immigrant in the college entrance examination.

Where is your household registration? If you are in Chongqing, it is almost impossible for you to take the college entrance examination in Chengdu. Do you have a student status in Chongqing? If you take the exam in Chongqing, you should basically be able to do it. If you don't have a student status, it's a bit dangerous. In some places, exams are not allowed without a student status. But the regulations may be different from place to place. If you can go back to Chongqing, you will suffer in the exam in Sichuan, and the admission score in Chongqing is much lower than that in Sichuan. Don't worry about college entrance examination immigrants, as long as no one checks, the procedures are complete (household registration, student status, etc.). ), there will be no problem. There are more than one or two immigrants in the college entrance examination, so don't worry.