I am a graduate student of University of Electronic Science and Technology of China. I do invigilation in the graduate school and invigilate for postgraduate entrance examination. Well, I asked my teacher that all the papers of professional courses will be transported back to the school by car after the exam (for example, all the papers of colleges and universities applying for Sichuan will be transported back by car) and reviewed by the school teacher. As for the subjects of English and mathematics, it is not a unified reform in our school.