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题目内容
（广东开放大学大英B（本22秋））
What’s the function of price in the American economic system?
选择一项：
A. It determines supply.
B. It determines demand.
C. It regulates supply and demand.
D. None of the above.
选择一项：
A. It determines supply.
B. It determines demand.
C. It regulates supply and demand.
D. None of the above.
参考答案