题目内容
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[单选题]
短期平均可变成本曲线成为U形的原因与()。
A.规模报酬有关
B.外部经济与不经济有关
C.要素的边际报酬递减规律有关
D.固定成本与可变成本所占比重有关
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A.规模报酬有关
B.外部经济与不经济有关
C.要素的边际报酬递减规律有关
D.固定成本与可变成本所占比重有关
If the firm' s average cost curves are U-shaped, why does its average variable cost curve achieve its minimum at a lower level of output than the average total cost curve?