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问题 单项选择题

工程项目工作分解结构对简单项目只需分（）。

A．项目、子项目、工作

B．甲级、乙级、丙级

C．单项工程、单位工程、分部工程

D．项目、工作、子项目

答案

参考答案：A

单项选择题

Refusing to invest in companies that sell tobacco products, alcohol, or products that are harmful to the environment would constitute a set of investment restrictions that would best be classified according to which one of the following investment constraint categories（）

A. Factors that are considered to be either legal or regulatory.

B. Style investing.

C. Unique needs and preferences.
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单项选择题

Without（）, supply chain management doesn’t work.

A Logistics information system  

B.cable  

C.Internet    

D.computer
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