● The work breakdown structure comprises several levels of decomposition of the
● The work breakdown structure comprises several levels of decomposition of the total project. The lowest level of definition is always the (75) .
(75)
A. planning element
B.work package
C.subtask
D. working interface
正确答案：B
词条内容仅供参考，如果您需要解决具体问题
（尤其在法律、医学等领域），建议您咨询相关领域专业人士。