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单选题 Because every transaction has a buyer and a seller

A. GDP is more closely associated with a nation's income than it is with a nation's expenditure

B. every transaction contributes equally to an economy's income and to its expenditure

C. the number of firms must be equal to the number of households in a simple circular-flow diagram

D. firms' profits are necessarily zero in a simple circular-flow diagram

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时间:2024-01-12 01:52:05

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