The questions in Volume B and Volume A of the college make-up exam are exactly the same, not necessarily, but the test center is what you have learned. The content of make-up exams in each university may be different. For example, at the end of my school, the teacher will issue two sets of papers, A and B. Generally speaking, A is the final exam paper and B is the make-up exam paper. The contents of Volume A and Volume B in our school are not quite the same. Maybe the basic part is the same knowledge point, and then the difficult questions are different. For example, A took one test center and B took another test center. So if your school is divided into A and B, you can review according to the content of your final exam.