【单选题】The hatch at the after end of the canopy in a lifeboat _____ the after lifting hook, painter, and tow line.
【判断题】都在区间 上单调减少,则 也在 上单调减少。
【单选题】一般情况下,以下哪一类跨境物流方式运输时间最快( )
【单选题】The hatch at the after end of the canopy in a lifeboat _________ the after lifting hook, painter, and tow line.