2025知到答案 大学生的经济学思维(双语) 完整智慧树网课章节测试答案
第一章 单元测试
1、单选题:
The opportunity cost of an item is ( ).
选项:
A:the time you have to spend on earning enough money to buy that item
B:what you give up to get that item
C:the price of that item
D:the cost of producing that item
答案: 【what you give up to get that item】点我阅读全文
