项目管理专业人士资格认证（PMP）题库（1459题）

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在预算批准过程中，项目经理进行了一些初步估算，包括范围和潜在的风险储备。在提交预算以供批准后，要求项目经理提交更准确的预算。项目经理下一步应该怎么做？
During the budget approval process, the project manager makes some initial estimations that include scope and potential risk reserves. After submitting the budget for approval,the project manager is asked to submit one that is more accurate. What should the project manager do next?

A.进行自下而上估算并提供新的预算 Run a bottom up Estimate and provide A new budget

B.执行成本效益分析以支持当前的预算估算 Perform a cost-benefit analysis to support the current budget estimations

C.进行自上而下的估算并提供新的预算 Conduct a top-down estimates and provide new budget

D.审查估算的合理性，以确保其准确和最新 Review the rationalization of the estimates to ensure that they are accurate and current

知识点：PMP强化练习题（一）

参考答案：A

解析：PMBOK(6)P244- 7.2.2.4自下而上估算。自下而上的估算是最具体细致的估算，题干里已经审批了初步估算，接下来该做细致的估算了。 其他选项：BCD都不是估算的工具。