【多选题】在有人触电时借助符合相应电压等级的绝缘工具可采用哪些方法使触电人员脱离低压电源
【单选题】It was lack of effort, not of money, _____resulted in their failure.
【单选题】焊条必须在干燥通风良好的室内仓库中存放,存放低氢焊条的室内相对空气湿度必须低于( )。
【单选题】It was lack of money, not of effort, ________ defeated their plan.
【多选题】在有人触电时借助符合相应电压等级的绝缘工具可采用哪些方法使触电人员脱离低压电源
【多选题】在有人触电时借助符合相应电压等级的绝缘工具可采用哪些方法使触电人
【单选题】Though ______ money, his parents managed to send him to university.
【多选题】[多选题] 在有人触电时借助符合相应电压等级的绝缘工具可采用哪些方法使触电人员脱离低压电源
【单选题】It was lack of money, not of effort, _____ defeated their plan.
【判断题】焊条必须在干燥通风良好的室内仓库中存放。()