1. The Third Hospital of Beijing Medical University is located at No.49 Huayuan North Road, Haidian District, Beijing, and the National Library is located at No.33 Zhongguancun South Street, Beijing. The distance between the two places is 5 kilometers, and it takes 35 minutes by subway.

2. The specific itinerary is: walk 1.2km from the Third Hospital of Beijing Medical University to xitucheng station, take the subway 10 line and get off at Haidian Huang Zhuang Station, then transfer to Metro Line 4 and get off at the National Library Station.