专责监护人需长时间离开作业现场时，应由（）变更专责监护人，履行变更手续，告知全体被监护人员。
参考答案：作业负责人
After retirement, learning a musical instrument may be harder than ______ when you were a kid.
A．it may
B．it was
C．it does
D．it did
带电作业，要按检修申请制度提前向所属（）提出申请，批准后方允许作业；严禁约时强送
A.生产部
B.基建部
C.送电部
D.调度
