环氧乙烷在空气中的爆炸极限是()。A、3~100%(vol)B、3.1~32%(vol)C、3.2~80%(vol)D、3.3~100%(vol)
环氧乙烷在空气中的爆炸极限是()。
- A、3~100%(vol)
- B、3.1~32%(vol)
- C、3.2~80%(vol)
- D、3.3~100%(vol)
相关考题:
以下属于1级作业环境的是()。 A.氧含量20%Vol,硫化氢5mg/m³B.氧含量20.9%Vol,硫化氢1mg/m³C.氧含量20.9%Vol,硫化氢4mg/m³D.氧含量19%Vol,硫化氢11mg/m³
以下属于3级作业环境的是( )。 A.氧含量20.9%Vol,一氧化碳15mg/m3B.氧含量19%Vol,一氧化碳5mg/m3C.氧含量19.5%Vol,一氧化碳20mg/m3D.氧含量20.9%Vol,一氧化碳4mg/m3
Which of the following is backed up with the mksysb command when a system consists of the volume groups rootvg, vol1, and vol2?() A.All filesystems in rootvg, vol1, vol2B.All locally mounted filesystems in the rootvgC.All files in the rootvg and system files in vol1 and vol2D.All local and remotely mounted filesystems
判断室内燃气泄漏时,应选用()A、有Vol%高量程(0~100%)的检测仪B、有PPM低量程(0~10000PPM)的检测仪C、有%LEL(爆炸下限)量程的检测仪D、有Vol%低量程(0~100%)的检测仪
根据GB./T20824—2007芝麻香型白酒标准规定,按产品的酒精度分为()。A、41%voL—68%voLB、40%voL—60%voLC、18%voL—40%voLD、35%voL—54%voL
Which of the following is backed up with the mksysb command when a system consists of the volume groups rootvg, vol1, and vol2?()A、All filesystems in rootvg, vol1, vol2B、All locally mounted filesystems in the rootvgC、All files in the rootvg and system files in vol1 and vol2D、All local and remotely mounted filesystems
单选题Which of the following is backed up with the mksysb command when a system consists of the volume groups rootvg, vol1, and vol2?()AAll filesystems in rootvg, vol1, vol2BAll locally mounted filesystems in the rootvgCAll files in the rootvg and system files in vol1 and vol2DAll local and remotely mounted filesystems
单选题判断室内燃气泄漏时,应选用()A有Vol%高量程(0~100%)的检测仪B有PPM低量程(0~10000PPM)的检测仪C有%LEL(爆炸下限)量程的检测仪D有Vol%低量程(0~100%)的检测仪