单项选择题
（）is a method used in Critical Path Methodology for constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the logical relationships that exist between them.
A.PERT B.AOA C.WBS D.PDM
单项选择题 The project life-cycle can be described as（）
单项选择题 Risk management allows the project manager and the project team not to（）
单项选择题 在项目质量监控过程中，在完成每个模块编码工作之后就要做的必要测试，称为（）
