本题目来源于试卷: IB Economics Unit 1.1: What is Economics? Scarcity Choice and the PPC，类别为 IB经济学
[单选题]
Assume a hypotheticaljq .bx.n ak9bey-1l(ym0 rlyov2t.q v1(2 hkn compe;7d ul *ss 5 9hkrw6nzoe7f6wlex and open economy.
From the following list, identify the leakages from the economy's circular flow of income:
I. Taxes
II. Export revenue
III. Saving
A. I only
B. I and III only
C. I, II, and III
D. II and III only
参考答案: B
本题详细解析:
B Leakages involve income earned that is not spent on domestic goods and services. Leakages include: saving, taxes, and import spending. Export revenue is an injection into the circular flow, not a leakage. Therefore, choices A, C, and D are incorrect because export revenue is an injection, not a leakage.
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