Generally speaking, economic systems can be divided into planned and free market systems.
A.正确
B.错误
正确答案：正确
Generally speaking, economic systems can be divided into planned and free market systems.
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Legal monopolies exist in industries requiring huge investments and in which it would be inefficient to duplicate the products t
The equilibrium price is a point at which buyers’ demand for a product and sellers’ supply of it are in balance.
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