( )是减少各种治安危害和维护社会治安秩序的基本措施。
A．打击
B．防范
C．教育
D．管理
参考答案：B
A couple of young people went _____ the ship ______ their stolen necklace worth $5000.
A．abroad; searching for
B．aboard; in search of
C．board; in their search of
D．broad; searched for
对于继电保护装置而言，通常是在最小运行方式下（）。
