输电线路发生瞬时故障，由于继电保护或开关等变电设备失灵导致事故发生，定为管辖该（）的事故。
A.线路
B.变电设备
C.上一级主管部门
参考答案：B
________, I believe, and you will find Tom is very outgoing. [ ]
A. Having a talk with the student
B. One talk with the student
C. Given a talk with the student
D. If you have a talk with the student
1，4，27，256，( )。
A．625
B．1225
C．2225
D．3125
