连接至低压配电线路的SPD按电路实际拓朴可分为什么？
参考答案：
连接至低压配电线路的SPD按电路设计拓扑可分为：
⑴电压开关型；
⑵限压型；
⑶组合型。
I don't like sports shows. They are _ fathers. [ ]
A. to
B. at
C. for
D. with
The decoration of the hall’s______but it’s not yet______with lamps.
A．furnished, finished B．been finished, been furnished C．being finished, being furnished D．furnish, finish
