单项选择题

Both the CPM and PERT methods assume that estimated activity durations are ______ .

A．statistically dependent
B．mean distributed
C．standard distributed
D．statistically independent
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单项选择题
In schedule development, you create a distribution of probable results for each activity and use it to calculate distribution of probable results for the total project. The technique that you are using is ______ .
A．what-if analysis
B．mathematical analysis
C．Monte carlo analysis
D．resource leveling heuristic
单项选择题
Crashing in time management is ______ .
A．a schedule compression technique that typically includes reducing schedule activity durations and increasing the assignment of resources to schedule activities
B．a schedule compression technique in which phases or activities that normally would be done in sequence are performed in parallel
C．the timely input of data to calculate the critical path
D．equivalent to minimizing float
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