18 The Heckscher-Ohlin model of comparative advantage differs from the Ricardian model in that the former model has______ .
(A) two countries
(B) two products
(C) two factors of production
(D) two production possibility curves (one for each country)
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統計: A(1), B(1), C(8), D(1), E(0) #3152559
統計: A(1), B(1), C(8), D(1), E(0) #3152559