治安警察是负责维护社会治安秩序，保障公共安全的人民警察。 ( )
参考答案：对
电气危险因素分为触电危险、电气火灾爆炸危险、( )等。
A．静电危险
B．雷电危险
C．射频电磁辐射危害
D．电气系统故障
E．核电危害
As expected, the boy who shows great in playing badminton has been admitted to the sport university for his talent.
A．requirement
B．respect
C．addition
D．promise
