An implication of scarcity is that:
An implication of scarcity is that:
A.people must make trade-offs.
B.people will never be happy.
C.some people will always be poor.
D.making trade-offs becomes unnecessary as wealth increases.
正确答案：people must make trade-offs.
Tag：微观经济学 中国大学MOOC微观经济学
时间：2021-12-11 14:21:21