The Program Evaluation and Review Technique (PERT) is a method of scheduling projects. In the context of risk, PERT is better than the Critical Path Method because it deals with the _______ associated with ________.

When communicating with an action-oriented person, a project manager should—

项目的时间管理就是项目的（）

以下哪项是满足客户实际需求的质量特征？（）

从项目的角度来看，质量属性：（）