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题目内容
（广东开放大学大英B（本22秋））
The passage is mainly about how American ______________.
选择一项：
A. consumers buy their goods and services
B. economic system works
C. businessmen make their profits
D. goods are produced
选择一项：
A. consumers buy their goods and services
B. economic system works
C. businessmen make their profits
D. goods are produced
参考答案
