62 The purpose of a dummy activity in an activity-on-arrow diagram is to:A. Identify a task that could be replaced by another.B. Take the slack time into account.C. Show a task that is not necessarily needed.D. Denote a milestone.E. Show a dependency rela
题目
62 The purpose of a dummy activity in an activity-on-arrow diagram is to:
A. Identify a task that could be replaced by another.
B. Take the slack time into account.
C. Show a task that is not necessarily needed.
D. Denote a milestone.
E. Show a dependency relationship