单选

李师傅生产一个甲零件需要10分钟，生产一个乙零件需要20分钟，张师傅生产一个甲零件需要15分钟，生产一个乙零件需要60分钟。则李师傅生产一个甲零件的机会成本与张师傅生产一个甲零件的机会成本相比，情况是（）。

A 李师傅的机会成本是1/2乙零件，张师傅的机会成本是1/4乙零件，李师傅的机会成本比张师傅大

B 李师傅的机会成本是1/4乙零件，张师傅的机会成本是1/2乙零件，李师傅的机会成本比张师傅小

C 李师傅的机会成本是2/3乙零件，张师傅的机会成本是1/3乙零件，李师傅的机会成本比张师傅大

D 李师傅的机会成本是1/3乙零件，张师傅的机会成本是2/3乙零件，李师傅的机会成本比张师傅小

E

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李师傅生产一个甲零件需要10分钟，生产一个乙零件需要20分钟，张师傅生产一个甲零件需要15分钟，生产一个乙零件需要60分钟。则李师傅生产一个甲零件的机会成本与张师傅生产一个甲零件的机会成本相比，情况是（ ）。

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李师傅生产一个甲零件需要10分钟，生产一个乙零件需要20分钟，张师傅生产一个甲零件需要15分钟，生产一个乙零件需要60分钟。则李师傅生产一个甲零件的机会成本与张师傅生产一个甲零件的机会成本相比，情况是（）。