单项选择题
PDM includes four types of dependencies or precedence relationships: （）. The completion of the successor activity depends upon the initiation of the predecessor activity.
A.Finish-to-Start B.Finish-to-Finish C.Start-to-Start D.Start-to-Finish
单项选择题 The process of（）schedule activity durations uses information on schedule activity scope of work, required resource types, estimated resource quantities, and resource calendars with resource availabilities.
