题目内容

假设该工程有效标书经谇标专家的评审，其中A、B、C三家投标单位投标方案的有关参数，如表2-1所示。
若基准折现率为10%，已知A方案寿命期年费用为72. 40万元；B方案寿命期年费用为69. 93万元。试计算C方案寿命期年费用，并利用年费用指标对三个投标方案的优劣进行排序（小数点后保留两位）。

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