A-Level经济真题每期一练（20）

上期真题答案：1.B 2.D 3.D 4.B

接下来是今天的真题，一起练起来呀~

1.The diagrams show the markets for coffee and sugar.

In August 2013 it was reported that Brazil is forecasting a larger coffee bean harvest than in previous years. Other things being equal,this is most likely to cause.

Price of coffee     Price of sugar

A Rise                        Rise

B Fall                         Fall

C Fall                         Rise

D No change              Fall     

2. A rise in the price of a good is accompanied by an increase in the quantity demanded. What could explain this?

A Consumers spend a high proportion of disposable income on the good.

B The price of a complementary good has also increased.

C The substitute goods are all very much more expensive.

D The price of the good is taken tobe an indication of the level of quality.

3. Palm oil and sunflower oil are substitutes. Palm oil and palm kernel cake for animal feed are in joint supply. Other things being equal, what will be the effects of a fall in the price of sunflower oil?

4. An increase in the price of petrol will often result in consumers economising in their use of fuel by reducing the number of journeys they make in their cars. This

A is because petrol and car journeys are in joint supply.

B shows that there is a positive cross elasticity of demand between the price of petrol and the demand for car journeys.

C illustrates the operation of the rationing function of the price mechanism.

D is because the price elasticity of demand for petrol is positive.

5  Which one of the following best describes the relationship between the demand for air travel and the demand for airline pilots?

A Composite demand

B Derived demand

C Joint demand

D Complementary demand