上期真题答案：1.A 2.D 3.B 4.B 5.B
接下来是今天的真题，一起练起来呀~
1.Sally’s farm grows and sells potatoes and she aims to maximise profit. She believes that the marketprice of potatoes will not be affected by changes in her farm’s output. She will
A .Sell as much as she can produce in the long run
B. Become a monopolist, because she can supply the whole market
C.Produce at the level of output where marginal cost equals price in the short run.
D.Produce at the level of output where averagecost equals price in the short run.
E. Produce at the level of output where averagefixed costs equals marginal revenue.
2.The diagram below show a firm's average costs change as it employs more of all its factors of production,including capital and labour.
As the firmincreases its output from OH to OJ, the diagram illustrates:
A.The benefits of monopoly power
B.The benefits of increased specialisation
C.Diseconomies of scale
D.Increased productive efficiency.
3.The diagram below shows the average cost (AC) curve ofa firm.
The firm initially operates at point E. When the firm increases its size, it operates at point F.
A.Experiences more competition in its market
B.Is productively efficient.
C.Benefits from economies of scale.
D.Is profitable.
4.A mobile phone company finds that its totalcosts are best illustrated by the following curve. What can be deduced aboutcosts over the usual range of output AB?
A.Total costsare rising
B.Marginal costs are zero
C.Average costs are constant
D.Average costs are rising
E.Marginal costs are rising.
5.
