Why is trading expensive in a barter economy?
A.Because time is sacarce B.because goods are scarce. C.Because barter involves mutual wants D.Because there aren't many films available.正确答案C
Why is trading expensive in a barter economy?
A.Because time is sacarce B.because goods are scarce. C.Because barter involves mutual wants D.Because there aren't many films available.正确答案C
