【判断题】Beads, stones, seashells, paper, precious metals such as gold and silver, base metals such as iron have
all been used as money. Today, money is printed on paper. A lot of countries use their own cur...
【判断题】Beads, stones, seashells, paper, precious metals such as gold and silver, base metals such as iron have
all been used as money. Today, money is printed on paper. A lot of countries use their own cur...