问题
多项选择题
In SCM，（）is calied as upstream，（）is referred to downstream．
A．makers
B．suppliers
C．customers
D．distributors
答案
参考答案：B, C
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In SCM，（）is calied as upstream，（）is referred to downstream．
A．makers
B．suppliers
C．customers
D．distributors
参考答案：B, C