The beds have been allocated, so you can't choose by yourself.
2. It won't be the second day of military training, because there are physical examinations and exams. As for the time, I think it is about two or three days after the report. Military training won't last all day, but it will last about 8 hours in the morning and afternoon. There shouldn't be at night.
3. When you register the bedroom key, someone will take you to the second floor of the comprehensive building to get the bedding, which should be unified. I've never heard of anyone who hasn't.
I checked for four hours, and it should be like this.
mathematics
August 3, 20091,19: 00-21:00.
foreign language
September 09 1,19: 00-21:00.
physics
September 2, 2009, 19:00—2 1:00
Computer Basics
September 6(th), 2009