The monetary approach of exchange rate believes that（）
A. the relative supply and demand of currencies between two countries affect the exchange rate
B. only the interest rate of the country affects the exchange rate
C. only one country’s total output affects the exchange rate
D. it is mainly the expectation factor that influences the exchange rate
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The middle rate is the arithmetic average of which two of the following exchange rates（）
A. buying and selling exchange rates
B. spot and forward exchange rates
C. official exchange rate and market exchange rate
D. opening and closing exchange rates
Foreign exchange banks buy foreign banknotes at a price that is（）than the spot selling price
A. cheaper
B. a few more expensive
C. the same
D. equal to the exchange rate
The impact of the appreciation of a country’s currency on its import and export revenue is（）
A. exports decrease, imports increase
B. exports increase, imports decrease
C. exports increase, imports increase
D. exports decrease, imports decrease
Under the indirect quotation, the exchange rate of a local currency to a foreign currency becomes larger and smaller, which respectively means（）
A. appreciation and depreciation of local currency
B. devaluation and appreciation of local currency
C. no relation
D. not sure
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