基于pressure-state-response框架,以下哪项( )适合用做酸雨管理指标 Based on the pressure-state-response framework, which group of the following indicators is suitable for acid rain management( )
A、酸性气体排放量、大气中氢离子浓度、酸性气体减排政策 The acid gas emissions, the concentration of hydrogen ions in the atmosphere, acid gas reduction policy
B、矿产含硫量、脱硫设备除硫数量、清洁燃料政策 The sulfur content of minerals, the amount of sulfur removal from desulfurization equipment, clean fuel policy
C、经济规模、单位产值酸性气体排放量、酸沉降频率 Economic scale, the acid gas emissions per unit output , acid deposition frequency
D、降水PH值、酸沉降影响范围、酸雨受害构筑物修复管理 The PH value in precipitation, the impact range of acid deposition, the repair and management of acid rain damaged structure