问题
单项选择题
A minimum wage is an example of which of the following（）
A. A price ceiling.
B. A quota.
C. A price floor.
答案
参考答案：C
解析：
A minimum wage is an example of a price floor.
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A minimum wage is an example of which of the following（）
A. A price ceiling.
B. A quota.
C. A price floor.
参考答案：C
解析：
A minimum wage is an example of a price floor.