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

正确答案 ：B

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]There are strategies typically deal with threats or risk that may have negative impacts on project objectives if they occur, some other strategies are suggested to deal with risks with potentially positive impacts. （）is a risk response strategy that may be adopted for either threats or opportunities.

正确答案 ：D

Acceptance

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