由于燃气燃烧后排除的废气中都含有一氧化碳,且当其容积浓度超过0.16%时,人呼吸()min就会在2h内死亡。 ["5","10","20","30","40"]
洒在土面上的药剂,应立即翻入()左右,深度,的土层中,并耙拌均匀。 ["5cm","10cm","15cm","20cm"]
汽车每年的平均使用费用,在一般情况下,随着使用年限的增长,平均运行维修费用增加,年均折旧费用() ["上升","下降","不变","不确定"]
当液化石油气气体体积在空气中含量超过()时,遇明火会引起爆炸。 ["0.3%","1%","0.2%","3%","2%"]
果树的修剪通常是为了() ["更好看","早开花","能成活","长更高"]
党员违反公务接待管理规定,超标准、超范围接待或者借机大吃大喝,对直接责任者和领导责任者,怎么处分?