题目内容

According to the theory of intra-industry trade, many manufactured goods undergo a trade cycle in which the home country initially is an exporter and eventually becomes an importer of a product.

A. 对
B. 错

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The product-life-cycle theory applies best to trade in primary products in the short run.

A. 对
B. 错

According to the product-life-cycle theory, the first stage of a product's trsde cycle is when it is introduced to the home market.

A. 对
B. 错

According to the product-life-cycle theory, the last stage of a product's trade cycle is when it becomes an import-competing good.

A. 对
B. 错

Ricardo's thoery of comparative advantage is a static theory that does not consider changes in international competitiveness over the long run.

A. 对
B. 错

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