Street Stalls Start from Dingding

I was bitten and abused when I was in school, and then I was bitten and abused after graduation. What about practical classes in senior year? Under Dingding's supervision, we started setting up a street stall. Ding - the social practice class has started, please complete your homework as soon as possible. Ding - the street stall economy is imperative, please complete your homework as soon as possible. Ding - you have an exam to do, please complete it as soon as possible. Ding - you get 100 credits, which can be exchanged for teaching aids. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.