正确答案: B

Grade

题目：（）is a category assigned to products or services having the samefunctional use but different technical characteristics. Itisnotsameasquality.

解析：该题的关键词为"same functional use、 different technical characteristics"，其主要语句结构为" （）is a category"，含义为"什么是类别"，后续的定语从句说明category都有什么特点，即功能相同而技术特征不同，而这正是等级( Grade)的定义。所以选择选项B。

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学习资料的答案和解析：

[单选题]PDM includes four types of dependencies or precedence relationships:（）.The completion ofthe successor activity depends upon the initiation of the predecessor activity.

Start-to-Finish

解析：该题的关键词为"PDM includes four types"，其语句结构为"The completion of the successor activity（主语）depends upon（谓语）the initiation of the predecessor activity"，含义为"后续活动的完成依赖于前置活动的开始"，根据选项容易识别为SF活动依赖类型。

[单选题]Organizations perform work to achieve a set of objectives. Generally, work can be categorized as either projects or operations, although the two sometimes are（）

overlap

解析：该题的关键词为"categorizedprojects or operations"，其语句结构为"Generally,work（主语）can be categorized（谓语）as either projects or operations, althoughthe two（主语）sometimes are（）（谓语）"，含义为"通常，工作可以分类为项目型和运作型工作，尽管两者有时(?)"，因两者既有相同之处，也有不同的地方，所以选择C。选项D对应的单词"dissever"疑为拼写有误。

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

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]The strategies for handling risk comprise of two main types: negative risks, and positive risks. The goal ofthe plan is to minimize threats and maximize opportunities. When dealing with negative risks, there are three main response strategies（）,rransfer ,Mitigate.

Avoid

解析：该题的关键词为"negative risks、response strategies"，其语句结构为"When dealing with negative risks（状语从句），there are（谓语）three main response strategies（）Transfer，Mitigate（主语）"，含义为"当应对负面风险时，有三种应对方法，分别是什么、转移和减弱。"，根据负面风险的应对方法，可知是规避，应该选择Avoid。

[单选题]The creation ofa work breakdown structure (WBS) is the process of（）the major project deliverables.

subdividing

解析：该题的关键词为"work breakdown structure、 major project deliverables"，其语句结构为"The creation ofa work breakdown structure (WBS)（主语）is（谓语）the processof（）the major project deliverables"，含义为"创建WBS是怎样主要的项目交付物的过程"。根据WBS定义以及选项，容易识别出应选择分解(subdividing)

[单选题]The connection between two networks from an intemet is handled by a machine known as a（）

router

[单选题](1) is a method of constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.This method includes following types of dependencies or precedence relationships: (2) the initiation of the successor activity, depends upon the completion ofthe predecessor activity.(3) the initiation ofthe successor activity, depends upon the initiation ofthe predecessor activity.