系统集成商Y公司承担了某企业的业务管理系统的开发建设工作，Y公司任命陈工为项目经理。陈工估计该项目20天即可完成，如果出现问题耽搁了也不会超过28天完成，最快18天即可完成。根据项目历时估计中的三点估算法，该项目的历时为(49)，该项目历时的估算方差约为(50)。

(75) is the budgeted amount for the work actually completed on the schedule activity or WBS component during a given time period.

(72) is the process of obtaining the stakeholdrs'formal acceptance of the completed project scope. Verifying the scope includes reviewing deliverables and work results to ensure that all were completed satisfactorily.

During the risk analysis process, it is determined that one identified risk event cannot be avoided, mitigated, or insured. This risk event is a critical item that could cause the project to fail if it occurs. The best option for the project manager is to: (73).

Estimating activity durations uses information on activity scope of (74), required resource types, estimated resource quantities, and resource calendars.

以下不属于全面质量管理(TQM)核心特征的是(70)。

Most system development methodologies also provide (71), whose purpose is to contain the various pieces of relevant information-feasibility assessments, schedules, needs analysis, and so forth-in a single place so that they can be presented to project clients and other related parties.

以下关于项目最终验收的描述中，错误的是(68)。

在对某项目采购供应商的评价中，评价项有：对需求的理解、技术能力、管理水平、企业资质和类似项目经验等。假定每个评价项满分为10分，其中“类似项目经验”权重为10%。若4个评定人在“类似项目经验”项的打分分别为7分、8分、7分、6分，那么该供应商的“类似项目经验”的单项综合分为(69)。

通常，用于编制采购计划过程的技术、方法不包括(67)。

通常，变更控制流程的作用不包括(65)。