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1.（）是一种典型的”陆雾”，在海面上通常不能产生。
单选题A. 锋面雾~||~平流雾~||~蒸汽雾~||~辐射雾
2.A correction for augmentation is included in the Nautical Almanac corrections for ______.
单选题A. theSun~||~theMoon~||~Venus~||~Noneoftheabove
3.If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the Northern Hemisphere？______.
单选题A. Easttonortheast~||~Easttosoutheast~||~Northtonorthwest~||~Southtosoutheast
4.（）是在海面风的作用下形成的海水水平方向的流动，又称风流。
单选题A. 补偿流~||~地转流~||~风海流~||~潮流
5.On no account can they cut it______it be fouled.
单选题A. Do~||~would~||~shall~||~should
6.Several shoals______reported to exist in the area southwest of the Brothers．
单选题A. have~||~havebeen~||~has~||~hasbeen
7.气团的形成必须具备的条件为（）
单选题A. 大范围物理性质比较均匀的下垫面和不稳定环流条件~||~大范围比较平坦的下垫面和适当的环流条件~||~大范围物理性质不均匀下垫面和适当的环流条件~||~大范围物理性质比较均匀的下垫面和适当的环流条件
8.在空盒气压表上读数后，除温度订正外，还需进行（）才能得到本站气压。
单选题A. 刻度订正和纬度订正~||~高度订正和刻度订正~||~刻度订正和补充订正~||~高度订正和补充订正
9.海图数据库包含海图及其他航海出版物的基础数据ENC及其更新数据，它们在系统内形成（）供航海者使用
单选题A. ECDIS~||~ENC~||~SENC
10.（）为南海季风转换月份，风向不稳定，海流处于转换之中，比较零乱。
单选题A. 1月和7月~||~3月和9月~||~4月和10月~||~6月和12月
11.It is dangerous for vessels without the use of radar______the estuary(河口)．
单选题A. toget~||~toapproach~||~toproceed~||~toclose
12.象灯塔、教堂尖顶及锥形浮标等这类锥形目标的反射性能很差，只有当雷达波与其母线（），其反射性能才和圆柱形目标相同
单选题A. 交叉时~||~平行~||~互相成180°角时~||~垂直时
13.If a weather bulletin shows the center of a low pressure system to be 100 miles due east of you, what winds can you expect in the Southern Hemisphere？ ______.
单选题A. South-southwesterly~||~North-northwesterly~||~South-southeasterly~||~North-northeasterly
14.适宜的风场：一般认为（）风有利于平流雾的发展。
单选题A. 无风~||~2～4级~||~5～6级~||~7～8级
15.ECS是用来显示（）的海图显示系统。
单选题A. 矢量电子海图~||~光栅海图~||~系统电子航海图~||~非官方矢量电子海图或光栅电子海图数据库
16.Fishing stake, the position of which frequently _____, exist in the area covered by this chart.
单选题A. removed~||~altered~||~corrected~||~Converted
17.风一日内阵性最强在（），一年中阵性最强在夏季。
单选题A. 清晨~||~午后~||~傍晚~||~深夜
18.In the Northern Hemisphere, if the center of a high pressure area is due west of you, what wind direction would you expect？______.
单选题A. Southtowest~||~Southtoeast~||~Northtowest~||~Northtoeast
19.“东风送湿，西风送干”的交换方式属于（）
单选题A. 平流~||~辐射~||~湍流~||~对流
20.有资料表明，一个三级浮标装了五角反射器后，探测距离可从1.5nmile增加到（）
单选题A. 25nmile~||~3nmile~||~35nmile~||~4nmile
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