项目经理要对WBS中标号为2.2.3号的工作包设定一个控制点，以便对其成本、进度、质量进行监控，再次比较适合设定一个 （ ） 。
- A.WBS字典
- B.控制账户
- C.账户编码
- D.活动基线
正确答案及解析
正确答案
解析
WBS字典就是一种管理的规范化、标准化的工具，用于描述和定义WBS元素中的工作的文档。控制账户是在WBS中提出的概念，是在规划包以下，工作包以上，便于管理监控设置的控制点。账目编码是用于唯一确定项目工作分解结构每一个单元的编码系统。成本和资源被分配到这一编码结构中。活动基线是开发软件文档或源码活动的一个稳定版本，是进一步开发的基础。
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