快3单双大小长龙怎么看

简介：Most of the predecessors of Daming Bank were gold and silver jewelry stores. When merchants were making gold and silver jewelry, they found that it was profitable to exchange gold, silver, and copper coins. Smart Huizhou merchants began to transform and slowly developed into a specialized store. Shops that exchanged gold, silver and copper coins also opened cash registers to outsiders, and gradually became banks.