A.浮充电压 B.均充电压 C.终止电压 D.开路电压
A.混合避雷 B.一级避雷 C.多级避雷 D.单级避雷
A.2.30~2.35V B.2.20~2.27V C.2.20~2.23V D.2.20~2.35V