You can't get a student card unless you get a Jia card! Temporary meal cards can be handled on the first floor of Xueyuan Building. Temporary meal cards have a deposit, I remember! And it can only be eaten on designated floors, not all canteens are universal! But you can also eat in a black shop, either by credit card or in cash! If you study, it is a sincere building and a just building. As long as there is no class, just go in and study, no one cares. You don't have to look at the aunt at the door when you go in, just go in directly. Good luck!