某银行外汇敞口头寸为：欧元多头90，日元空头40，英镑空头60，瑞士法郎多头40，加拿大元空头20，澳元空头30，美元多头160。分别按累计总敞口头寸法、净总敞口头寸法和短边法三种方法计算的总敞口头寸中，最小的是（）。 120。 140。 290。 440。
世界上有了第一台电子数字计算机，奠定了至今仍然在使用的计算机（）。 外型结构。 总线结构。 存取结构。 体系结构。
After conducting an abandonment drill，the Master or person in charge of a ship shall log（）. the names of crew members who participated in the drill。 the length of time that each motor propelled lifeboat was operated in the drill。 the length of time the lifeboat was in the water。 the time it took to lower the boat。
现代电子计算机发展的各个阶段的区分标志是（）。 元器件的发展水平。 计算机的运输速度。 软件的发展水平。 操作系统的更新换代。
According to the Code of Federal Regulations，on vessels other than river ferryboats and river vessels，how are periodic lifeboat weight tests required to be conducted?（） The lifeboat is lowered to near the water，loaded with the allowed capacity，lowered into the water until afloat，then released from the falls。 The lifeboat is loaded with the allowed capacity，lowered into the water until afloat，then released from the falls。 The lifeboat is lowered into the water until afloat，loaded with the allowed capacity，then released from the falls。 The lifeboat is lowered to near the water，loaded with the allowed capacity，then released from the fall。
海事仲裁是解决海事争议的重要的途径之一，其特点有（）。
