第19题: [单项选择]The causes of variances and the reasoning behind the corrective action chosen are summarized the ______ . A. work breakdown structure B. accounting codes for the activities C. lessons learned D. performance reports 参考答案:C 答案解析:[解析] 偏差的原因和选择纠正行动的理由可以总结在 ______ 里。 A) 工作分解结构 B) 活动的账户编码 C) 经验总结 D) 绩效报告 经验总结会记载项