某产品功能的现实成本为4000元,目标成本为3600元,该产品分为三个功能区,各功能区的重要性系数和现实成本见下表。 功能区 功能重要性系数 功能的现实成本 / 元 F 1 0.34 1600 F 2 0.42 1520 F 3 0.24 880 则应用价值工程时,优先选择的改进对象依次为
A.
F 1 -F 2 -F 3
B.
F 1 -F 3 -F 2
C.
F 2 -F 3 -F 1
D.
F 3 -F 1 -F 2
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