以下哪项指标()可作为政府层面管理指标 Which of the following()can serve as a government-level metric
A、温室气体排放量 Greenhouse gas emissions
B、单位产品的能源消耗量 The energy consumption per unit of product
C、单位净收入的废气排放量 The gas emissions per unit of net income
D、单位销售额的土地占用面积 The land occupied area per unit of sales