関連ワード:  is utilities a fixed or variable cost    is electricity a fixed or variable cost    is maintenance a fixed or variable cost    is factory utilities a fixed or variable cost    is utility bills a fixed or variable cost    is utilities a fixed variable or mixed cost    is equipment maintenance a fixed or variable cost    is electricity bill a fixed or variable cost    is website maintenance a fixed or variable cost    is factory maintenance a fixed or variable cost  
結果 : is utilities a fixed or variable cost