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什么是客户断货率？

答案

参考答案：

客户断货率指在一定周期内，断货客户数与有需求记录客户数之比。它反映的是零售客户经营的卷烟规格在零售过程中的断货频率，并能在一定程度上反映当前市场货源的紧俏程度。

计算公式：客户断货率=（断货客户数÷有需求记录客户数）×100%。

单项选择题

研究有效厚度的基础资料有岩心、试油和（）资料。

A、地球物理测井

B、地震

C、射孔

D、钻井
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Dear Mr David Harris,
    I'm very happy to write to you because I accepted the admission notice                               1. _____ 
in Beijing University yesterday. I'll study IT,                                                                            2.        _ 
that I have been dreaming about.                                                                                            3.         _ 
    Mr Harris, I still remember on the first day when you taught us three years ago.                   4.        _ 
We were quite shy and poorly at listening and                                                                         5.        _ 
speaking. You encourage us to practise as much as possible. Your teaching was so                 6.         _
interesting that all of us attracted.                                                                                            7.         _
With your helps I improved my English, and in NMF,T I got                                                   8.           
the satisfactory result. Mr Harris, thank you very much indeed. How are you now                   9.           
in Chicago? Hope to hear you soon.                                                                                       10.        _
                                                                                             Yours．
                                                                                                 Li Wei
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