63 When a project incorporates an Organizational Breakdown Structure (OBS), it is integrated with the WBS at theA. taskB. level of effortC. sub-taskD. projectE. work package
题目
63 When a project incorporates an Organizational Breakdown Structure (OBS), it is integrated with the WBS at the
A. task
B. level of effort
C. sub-task
D. project
E. work package