Before the Swimming season, the author’s daughter was very competitive.
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Section c1（）2（）3（）4（）5（）6（）7（）8（）9（）10（）
The opportunity cost of good A in terms of good B is equal to the
A.money price of good A minus the money price of good B.
B.money price of good B minus the money price of good A.
C.ratio of the money price of good A to the money price of good B.
D.ratio of the money price of good B to the money price of good A.
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