Weusuallyusetwokindsofmoney.Onekindismoneymadeofpapera...
问题详情： Weusuallyusetwokindsofmoney.Onekindismoneymadeofpaperandtheotherkindismoneymadeofm (1).Butinthepastpeopleusedmanythingsi (2)ofmoney.Somecountriesusedsalt,teaorstones（石头）.Othercount...