At present, all countries in the world implement（）.
At present, all countries in the world implement（）.
A.Non-convertible fiat monetary system
B.Gold-silver bimetallic standard
C.Gold bullion standard
D.Gold exchange standard
正确答案：Non-convertible fiat monetary system
Tag：货币金融经济学 中国大学MOOC货币金融经济学
时间：2021-12-13 15:20:56