我认为, 不管是415前,还是在415后,只要你接受了并被输入SEAVIS系统,主动权就在学校了。它可以影响你的签证的。请看下文。
This message is just a reminder that the April 20 deadline for the acceptance or rejection of our offer of admission and financial aid is just 6 days away. If we do not hear from you by this time the offer becomes void.
While you are considering this offer I would also like to remind you of changes made by the US Government regarding international students. If you accept an offer from an university, this begins a process by which an I-20 form is generated and sent to you. It is illegal to receive and keep more than one I-20, but this was not enforced in the past. However, beginning this year the US Government has begun a comprehensive database, called SEAVIS, to track each and every international student in the US. When a university issues an I-20 it is logged in this database. So if you receive more than one I-20 this information will be known to the Goverment and when you apply for your visa at a US Consulate it is likely that it will be denied. So please weigh your acceptance decision carefully and do NOT accept offers of admission and financial from one university if you have already done so with another.