A project to build a new product contains a design that uses some features of two existing products, but the new product needs to be larger and cheaper than products of previous generations. The project manager reviewed files of the two existing products and discusses the impact on the final cost with the engineering director. What technology will the project manager use to estimate costs? 一个构建新产品的项目包含了一项设计，而该设计使用了两个现有产品的一些功能，但是，新产品需要比其他前代产品更大型且更便宜。项目经理查看两个现有产品的文件，并与工程总监讨论对最终成本的影响。项目经理将使用什么技术来估算成本？ ◑A.Modeling and cost forecasting建模和成本预测 ◑B.Analogous estimating and parametric estimating类比估算和参数估算 ◑C.Expert judgment and cost aggregation专家判断和成本汇总 ◑D.Bottom-up estimating and Project Evaluation and Review Techniques (PERT)自下而上估算和计划评审技术分析
