pmp考试模拟题（683题）

Work packages are used to:
Represent units of work at a level where work is performed.
Clearly distinguish one work package from all others assigned to a single functional group.
Limit the work to be performed to relatively short periods of time.
All of the above.
A and B only
D
Project life cycles are very useful for _____ and _____ .
Configuration management, termination&nbsp