正确答案: C

risk

题目：In approximating costs, the estimator considers the possible causes ofvariation of the cost estimates, including（）

解析：该题的关键词为"approximating costs、 causes ofvariation"，其语句结构为"the estimator （主语）considers（谓语）the possible causes ofvariation of the cost estimates, including（）"，含义为"估算人员考虑对成本估算可能造成影响的原因，包括什么"。估算成本考虑不确定性，而不确定性正是风险的一个基本特征，所以选择选项C。

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学习资料的答案和解析：

[单选题]The（）defines the phases that connect the beginning of a project to its end.

project life cycle

解析：该题的关键词为"phases"，其语句结构为"______（主语）defines（谓语）the phases"，含义为"什么定义了项目的多个阶段"，通过筛选首先排除A和C，选项D也容易排除，因为Milestone（里程碑）只是关键点上发生的活动，不具备阶段的持续性特点，因而只能选择选项B。

[单选题]（）involves using mathematical techniques to forecast future outcomes based onhistorical results.

Trendanalysis

解析：该题的关键词为"mathematical techniques、 forecast future outcomes"，其语句结构为"____（主语）involves（谓语）using mathematical techniques to forecast future outcomes（宾语从句）"，含义为"什么涉及使用数学方法预测未来结果"，结合选项分析，虽然都是质量管理方法，但其中只有Trend analysis用于预测未来结果，Quality audit为质量审计，Defect repair review为缺陷补救审查，Flowcharting为流程图，均不涉及对未来结果进行预测。

[单选题]（）is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.

Polymorphism

解析：该题的关键词为"an abstract operation、 performed in different ways in different classes"，其语句结构为"（）is a property of object-oriented software"，含义为"什么是面向对象软件的一个特性"，结合关键词分析，容易判断这是面向对象中的多态性概念(Polymorphism)。

[单选题]Project schedule management is made up of six management processes including: activity definition, activity sequencing（）and schedule control by order.

activity resource estimating, activity duration estimating, schedule development

[单选题]Project selection methods involve measuring value or attractiveness to the project owner or sponsor and may include other organizational decision criteria （）is not a project selection method.

Flowcharting

[单选题]In which form of projects origination would the project manager be likely to exercise the most control over Project resources.（）

Projectized

[单选题]Your project is behind schedule due to conflict between team members . Havingresolved the conflict, to get the project back on schedule , you should consider （）.

crashing the schedule

[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.

[单选题]Documentation of a software package is normally produced for two purposes. One is to explain the (1) ofthe software and describe how to use them. This is known as (2) because it is designed to be read by the user of the software. The other purpose of documentation is to describe the software's internal composition so that the system can be maintained later in its life cycle. Documentation ofthis type is known as ( 3 )