The most crucial time for project risk ass
题型：单项选择题
问题：
The most crucial time for project risk assessment is______．
A．when a problem surfaces
B．during the planning phase
C．during the close-out phase
D．after the project schedule has been published
The most crucial time for project risk assessment is______．
A．when a problem surfaces
B．during the planning phase
C．during the close-out phase
D．after the project schedule has been published