The presence of communication barriers is most likely to lead to—

活动A历时为3天，开始于4号星期一上午，后续活动B和A的关系为结束一开始。结束一开始关系有3天滞后，活动B历时为4天，星期天为非工作日，从这些数可以得到什么？（）

While preparing your risk responses, you realize that you have not planned for know risk events . You need to make adjustments to the project to compensate for unknown risk events . These adjustments are based on your past project experience when unknown

Maintenance and on-going operations are crucially important to projects and should:

因为你认识到成本控制的重要性，你在挣值管理系统中加入了一些可以接受的偏差。当某些“不可接受的差异出现的时候，项目变更是不可避免的。在每个“不可接受的”变更出现的时候，你首先：（）