A.0.8~0.9倍 B.0.7~0.8倍 C.0.6~0.7倍 D.0.5~0.6倍
A.UPS電源 B.逆變裝置 C.斷路器跳閘 D.應(yīng)急照明
A.0.4 B.0.8 C.0.3~0.4 D.1.5~2.0