1.20 yuan is included in the dormitory on campus, and the flow (I don't remember the specific flow, it may be 50m) 10 yuan. The library accesses the Internet at its own expense 1.5 yuan/hour, but charges by the minute, which needs to be recharged with Beihang card. The teaching and research section pays the IP fee to the network center, 20 yuan/month in China and 20 yuan/month in 50 yuan abroad.
2. The dormitory account number consists of the dormitory number plus a card number. Go straight to the library. Teaching and research section fixed IP, also directly.
3. The teacher's IP fee is: domestic IP20 yuan/month, foreign 50 yuan/month. Generally, the department is responsible.
4. Except for the dormitory bag flow, nothing else is considered as flow.
5. The library can surf the Internet wirelessly.
I hope I can help you.