负盈利套利打法有哪些

简介：Other grain merchants are very upset. If only they had known that they would also learn from Cai Qichang. They sell grain at a fair price, but who knows how much grain they sell every day? It is impossible to keep most of the food, but now it is better. All the food is lent to Jinghui Food Co., and they cannot make any false claims.