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

正确答案 ：B

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]The parties to government procurement refer to the principal entities of all kinds that enjoy rights and undertake obligations in government procurement, including the procuring entities, the （）and the procuring agencies.

正确答案 ：D

suppliers

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