为了加强预算控制，成本估算建设在WBS的 （ ） 层进行。
- A.最高
- B.最低
- C.核心
- D.第三
正确答案及解析
正确答案
解析
WBS把项目工作细分为更小、更易于管理的工作单元，随着WBS层次的降低，意味着项目工作也越来越详细。最底层的WBS单元叫工作包，是我们进行进度安排、成本估计和监控的基础。
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