单项选择题
A.Total float for the activity is 9 days.
B.The early finish date ofthe activity is the end ofthe day on the 14th.
C.The late finish date is the 25th.
D.The activity can be completed in 2 days ifthe resources devoted to it are doubled.
单项选择题 Project selection methods involve measuring value or attractiveness to the project owner or sponsor and may include other organizational decision criteria （）is not a project selection method.
单项选择题 Creating WBS means subdividing the major project deliverables into smaller components until the deliverables are defined to the level（）
单项选择题 Configuration management system can be used in defining approval levels for authorizing changes and providing a method to validate approved changes.（）is not a project configuration management tool.