1. According to the national regulations, you must accept the admission notice.
2. The file transfer letter and the admission notice are not mailed together. The document transmission letter is sent to the college. After you graduate, the college will sort out all your personnel files and party member files, and then mail them directly to the admitted graduate school in minutes.
3. The file transfer letter only tells the school where your files are sent, because the receiving colleges generally have the deadline for receiving files, so take the file transfer letter back before the notice is issued, mainly to ensure that your files can be transferred to the receiving school on time. As long as the files arrive, the file transfer letter is only a voucher for the original school. The notice is the proof of the school's independent enrollment.