Phd居然Need Financial Documents，什么情况?

查邮件发现一个Mississippi State University的邮件，要求寄财产证明。说我academically eligible for admission，Your application file will be complete when we have received certification of actual means of support. 难道又是一个不给奖的Phd？有过来人知道怎么什么时候会发奖学金吗？