题目内容
If a country specializes in what it produces best, it would make fewer profits because it loses the opportunity to sell other goods.
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According to comparative advantage, people should specialize in what they do best and then trade their products for the things they need.
A win-win situation means that both the country and its consumers can benefit from international trade.
属于水闸闸门加固及止水技术的是
1-3 表示总体特征的数称为____
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