【单选题】家用电器或线路着火时,要先切断电源,再用干粉或哪种灭火器进行扑救。 ()
【单选题】When turning the engine with turning gear, you should keep the indicator cocks _____.
A.
attached to the indicators
【简答题】电器或电源线路 着火 时,要先切断电源,再用干粉灭火或 灭火。
【单选题】-Remember! Keep all the secrets_______ me. -OK. I’ll keep them _______myself.
【单选题】The experiment is______failure.But do remember that,in the face of failure,you should still keep up good state of mind.
【判断题】电器或线路着火时,要先切断电源,再用干粉灭火器或气体灭火器灭火,不可直接泼水灭火,以防触电或电器爆炸伤人。
【单选题】When you are a speech, always remember to keep it short and ______.
【单选题】---The students of Class 7 are going to the seaside this weekend. ---Remember _____ them not to keep _______ alone in the sea. It’s erous.
【单选题】单选题 窗体顶端 题目: 建立紧急联络处理小组 选项:
【判断题】电器或线路着火时,要先切断电源,再用干粉灭火器或气体灭火器灭火,不可直接泼水灭火,以防触电或电器爆炸伤人。