1, the training center, is very formal, and the price is between 200 and 300 yuan for one night. It is located in Beihang University, just opposite Beihang University Gymnasium, and the location is quite good. The room will be a little more spacious than home, and then it will face the gymnasium, with good sound insulation. At night, it will also be at school and quiet. This used to be the guest house of Beihang University, which was renovated after the Olympic Games.
2. Nianjia Hotel is at the southeast gate of Beihang University. If you take a bus to Beihang Station, you can see it, across the road. It is a regular hotel with internet access, and the accommodation fee is about 188 a night.
There are many hotels in the Universiade Village outside the south gate. You can go and have a look while walking. There are formal and small shops. This shop starts in 30 yuan and stays in 50 yuan for one night.
I hope this helps.