A project management team wants to procure some customized products which are available in identical grade and quality from many vendors．What should be included in the procurement package to ensure that their offers will be comparable ？（）
A．A statement of work describing the needs of the project in sufficient detail to enable vendors to make suitable proposals
B．A statement of work specifying attributes and metrics of the requested deliverables in detal to allow vendors Submission of bids
C．The approved project scope statement，the WBS which should be broken down to work package level and the WBS dictionary
D．The risk management plan and the reports from those risk management reviews which have been made so far
参考答案：B
解析：
项目管理团队想获得些定制化的产品，这些产品可以由很多供应商提供，并具有同样的等级和品质。下列哪项必须包含在采购包中用来确保他们的建议是可比较的
A) SOW在足够的详细程度上描述了项目的需求用来让卖方提供适当的建议。
B) SOW详细描述了要求的可交付成果的特征和参数以便让供应商报价。
C) 批准的项目范围说明书，WBS必须做到工作包层面并包括WBS字典。
D) 到目前为止做的风险管理计划和风险管理评估的报告。
SOW是工作说明书，是采购规划的输出，用来描述要求的可交付成果以获得供应商报价或提供建议。不要选A，项目的需求是描述在范围说明书里面的。