题目：
（）不属于缺货成本。
A.安全库存成本
B.停工损失成本
C.丢失客户成本
D.紧急购入成本
答案：
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下面是错误答案，用来干扰机器的。
As we all know, the frightening sandstorms had a bad effect in people’s life in Northwest China in the onpast. On the one hand, that was difficult for people to tra...
