请问哪里有萨缪尔森经济学的题库下载？要英文的题~感激不尽！！~

Answers to in-text Questions in Economics (4th edition)

Chapter 1

Page
2  Could production and consumption take place without money? If you think they could, give examples.
Yes. People could produce things for their own consumption. For example, people could grow vegetables in their garden or allotment; they could do their own painting and decorating. Alternatively people could engage in barter: they could produce things and then swap them for goods that other people had produced.

 Before reading on, how would you define scarcity? Must goods be at least temporarily unattainable to be scarce?
See page 2 of text for a definition of scarcity. Goods need not be unattainable to be scarce. Because people’s incomes are limited, they cannot have everything they want from shops, even though the shops are stocked full. If all items in shops were free, the shelves would soon be emptied!

 If we would all l