变电站的应急照明可采用蓄电池作备用电源，其连续供电时间不应少于30min。
参考答案：错
On hearing a great noise, Mike looked forward through the window _____ what happened outside the room.
A．to seeing
B．to see
C．seeing
D．to have seen
进行企业分立属于资金结构的存量调整法。（）
