A:1:60000
B:1:100000
C:1:600000
D:1:1000000
从方框中选择适当的短语,并用其正确形式填空。
as long as because of according to how about was full of
为了改变集市交易的弊端,人们开始用某种信物作为中介,这些中介信物是现在的货币。( )