1. Of course, the atmosphere in the study room for postgraduate entrance examination is very good, but the classroom atmosphere in other classes is different. Some study rooms are very casual, such as talking and answering phones casually in the classroom, while others are very orderly. It is easy to find a classroom that is not disturbed many times a day, but it is difficult to find a fixed seat, because the study rooms for postgraduate entrance examination seem to be full.
You can find dormitory beds on campus. Just post an advertisement in front of the restaurant on campus. There are also many communities nearby, and there are also many small advertisements. You can definitely rent a house. As for whether it suits you, you have to feel it yourself. Because in the dormitory, there may be conflicts between people's schedules. When renting a house outside, you usually rent a cubicle, not necessarily a study. If you can rent the best dormitory or house for postgraduate entrance examination, you can look at the unfurled sharing advertisement.
3. You can eat in the canteen, punch in the canteen, and don't accept cash, but you can sneak cash when there are few people, and you can buy a meal ticket when there are many people.