某公司本年度各运维项目投入产出情况如下表所示，按照投入产出比可以看出（ ）。
①经济效益最小的是丁项目；
②丙项目比乙项目经济效益高；
③丙项目经济效益最高；
④甲项目比乙项目经济效益高。
- A.①②③
- B.①②④
- C.②③④
- D.①③④
正确答案及解析
正确答案
解析
衡量项目效益的指标：
项目投入产出比（R＝K/IN＝1∶N）。
项目投资回报率（项目投资回报率＝项目利润/项目投资总额×100%）。
项目净产出（项目的净利润产出总额）。
人均产出（单位人均产出＝净利润总额人员数量）。
甲：投入产出比：450/1200＝1∶2.67。
乙：投入产出比：200/380＝1∶1.9。
丙：投入产出比：560/1400＝1∶2.5。
丁：投入产出比：120/180＝1∶1.5。
故本题选择B项。
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