油船应备有手提式测氧仪，测爆仪和有毒气体检测设备，用以检测封闭空间的气体，每种仪器至少配备____台。
A、1B
暂无解析
蓝光灯照射不正确的方法是（）
People who can ’t _______ between colors are said to be color -blind.
Not until recently_____that Thompson had ben telling the truth all along.
They should try to ________ their usual inhibitions and join in the fun.
______ we can hope for is to avoid complete failure in the coming game with that strong team.
