Refer to the table below. The average benefit of 4 units of activity is:
Refer to the table below. The average benefit of 4 units of activity is:
A.$5
B.$9
C.$10
D.$4
正确答案:$9
Tag:微观经济学 中国大学MOOC微观经济学
时间:2021-12-11 14:23:46