you can eat in class. According to the local public information, as of September 23, 2122, there were no new cases in Changchun for 11 consecutive days, and hotels, restaurants, fast food restaurants, etc. resumed business through take-out and self-delivery, and resumed in-house food without contact distribution. Changchun is the political, economic and cultural center of Jilin Province. It is adjacent to Songyuan City in the northwest, Siping City in the southwest, Jilin City in the southeast and Heilongjiang Province in the northeast. The main city is located on the Yitong River platform in the hinterland of Songliao Plain.