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[单选] A project manager is estimating the project duration and finds that the only information available to him is a previous project that was quite different from the current one. However, some portions of the previous project were similar to the current one. Which of the following tools is the project manager likely to use to compare current project"s activity durations with the similar previous activities?一个项目经理正在估算项目的持续时间,他发现唯一可以得到的信息是一个以前的项目,这个项目与当前的项目有很大的不同。然而,上一个项目的某些部分与当前项目类似。以下哪个工具是项目经理可能用来比较当前项目的活动时间和以前类似的活动时间的工具?
A.Program Evaluation and Review Technique (PERT)计划评审技术(PERT) B.Analogous estimating类比估算 C.Three-point estimates三点估算 D.Parametric estimating参数估算
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