4.5/18=0.250.25*100=25
四种作物总面积是25公顷
蔗糖占18%,棉花占26%,粮食占46%,油料占10%.知蔗糖种植面积为4、5公顷,那么四种作物的总面积是多少公
蔗糖占18%,棉花占26%,粮食占46%,油料占10%.知蔗糖种植面积为4、5公顷,那么四种作物的总面积是多少公
数学人气：993 ℃时间：2019-12-02 05:18:00
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