A.10度B.15度C.0度D.25度
A.加速B.降速C.變速D.制動
A.泥駁靠泊挖泥船后松放,井應(yīng)在泥駁解纜前絞起B.泥駁靠泊挖泥船前松放,并應(yīng)在泥駁解纜前絞起C.泥駁靠泊挖泥船后收緊,并應(yīng)在泥駁解纜后松放D.泥駁靠泊挖泥船前收緊,并應(yīng)在泥駁解纜中松放