【单选题】The Economy Survey subscription has increased _______ the marketing budget has been cut down.
【简答题】在对接焊缝的起弧端和落弧端分别存在弧坑和未熔透等缺陷,这些缺陷统称为( ),该处易产生应力集中和裂纹。为消除其不利影响,焊接时可在焊缝两端设置( )。
【简答题】I that we wait until the budget has been announced before committing ourselves to any expenditure.
【单选题】对于杂货船,( )不是增大船舶稳性的措施。