【单选题】Homer and Teddy are stranded on a desert island. To feed themselves each day they can either catch fish or pick fruit. In a day, Teddy could pick 60 pieces of fruit or catch 20 fish. Homer could pick ...
A.
Homer has a comparative advantage in catching fish and Teddy has a comparative advantage in picking fruit.荷马在捕鱼方面具有比较优势,泰迪在采摘水果方面具有比较优势。
B.
Homer has a comparative advantage in picking fruit and Teddy has a comparative advantage in catching fish.荷马在采摘水果方面具有比较优势,泰迪在捕鱼方面具有比较优势。
C.
Homer has a comparative advantage in both catching fish and picking fruit.荷马在捕鱼和采摘水果方面具有比较优势。
D.
Teddy has a comparative advantage in both catching fish and picking fruit.泰迪在捕鱼和采摘水果方面具有比较优势。