万用表是测量通信设备和线路绝缘电阻的仪表。
在班主任工作评价的组织实施中，形成评价的结论的是（） ["确定标准","收集资料","组织动员","分析判断"]
依据华电集团《电力安全生产工作奖惩办法》，发生设备事故、火灾事故和供热事故时对事故责任单位的处罚规定是什么？
下述关于热水管网布置的做法错误的是：（）。 ["在长直管段上设置伸缩器","立管与横管相连时采用乙字弯","热水横干管沿墙面水平敷设","管网最高点设置排气装置"]
An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（） ["Fire a red flare at night or a red smoke signal by day","Send the Morse signal "N" by flashing light","Make a round turn (360°) and resume course","Make an "S" turn (hard right then hard left) and resume course"]
浇筑预应力构件有何规定？
