A.3天; B.5天; C.7天; D.10天
A.設(shè)備容量; B.負(fù)荷電流; C.電網(wǎng)供電電壓; D.額定電壓
A.新裝; B.改類及更名; C.更名過(guò)戶; D.銷戶