[单选题]Project work packages are typically decomposed into smaller components called activities to provide a basis for（）scheduling, executing, and monitoring and controllingthe proj ect work.

正确答案 ：B

estimating

解析：该题的关键词为"scheduling、executing、monitoring、controlling"，其语句结构为''Project work packages（主语）are typically decomposed into（谓语）smaller components"，含义为"项目工作包通常被分解为更小的活动"，分析后得知空白处的选项应该和上述的关键词为并列的词语，且顺序排列在其他的关键词之前，因而只能选择选项B，因为只有首先进行项目估算，才能制定项目进度，然后才能执行和监控，其他选项不符合题意。

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

正确答案 ：A

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)

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