[单选题]The（）technique involves using project characteristics in a mathematical model to predict total project cost. Models can be simple or complex.

正确答案 ：A

costaggregation

解析：可以注意到该题的关键词为"mathematical model"和"predict total project cost"，再划分语句结构"The（）technique(主语)involves(谓语)using project characteristics in a mathematical model to predict total project cost"，易理解语句含义为"什么技术使用数学模型预测项目的总成本"。观察四个选项，ABD也可能应用数学模型，也可能只是简单的数字规定，但选项C 一定会应用数学模型，所以应该选择parametric estimating。

[单选题]Define Activities is the process ofidentifying the specific actions to be performed toproduce the（）

正确答案 ：D

projectdeliverables

解析：该题的关键词为"Define Activities、identifying the specific actions"，其语句结构为"Define Activities（主语）is（谓语）the process ofidentifying the specific actions to beperformed to produce the_ "，含义为"活动定义是为了生成什么而执行所识别出的特定活动"，这是考察进度管理知识领域中的活动定义的概念，活动定义是为了生成交付物或子交付物而执行的活动，因此选择选项D。

[单选题]Many of the activities performed during the preliminary investigation are still being conducted in(1),but in much greater depth than before. During this phase, the analyst must become fully aware of the (2) and must develop enough knowledge about the (3)and the existing systems to enable an effective solution to be proposed and implemented. Besides the(4)for process and data of current system, the deliverable from this phase also includes the(5)for the proposed system.

正确答案 ：

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