第一章测试1.The opportunity cost of an item is ( ).
A:the time you have to spend on earning enough money to buy that item
B:the price of that item
C:the cost of producing that item
D:what you give up to get that item
答案:D
2.Which of the following are reasons for scarcity? ( )
A:People’s money is limited.
B:People always ask for more.
C:People like to buy good quality stuff.
D:People live in a society that is not fair.
答案:BC
3.Economics studies ( ).
A:the forces and trends that affect the economy as a whole
B:how people make decisions
C:how people interact with one another
D:how much people work, what they buy, how much they save and how they invest their savings
答案:ABCD
4.Scarcity is the condition that a society does not have enough resources to produce all the things people would like to have. ( )
A:错 B:对
答案:B
5.Rich people can have unlimited resources because they have enough money to buy anything. ( )
A:对 B:错
答案:B
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