2. 外语
  3. An economy has five workers. Each worker can make 4 cakes or 3 shirts. What is the opportunity cost of making a shirt?______.

An economy has five workers. Each worker can make 4 cakes or 3 shirts. What is the opportunity cost of making a shirt?______.

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问题 An economy has five workers. Each worker can make 4 cakes or 3 shirts. What is the opportunity cost of making a shirt?______.
选项 A、0.75 cakes
B、1.33 cakes
C、4 cakes
D、3 cakes
答案B
解析 答案为B项。本句之意制作3件衬衣的机会成本为4个蛋糕，那么，制作l件衬衣的机会成本为4÷3=33，故选B项。
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