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1.潮汐周日不等(diurnal inequality of tide)的现象为（）。
单选题A. 一天有两次涨潮和两次落潮~||~相邻两次高潮或两次低潮潮高不等~||~涨落潮时间不相等~||~一天有两次高潮或两次低潮的潮高以及相邻的高低潮的时间间隔不相等
2.通常在中纬地区陆地上交角约为（），在海面上约为10°～20°。
单选题A. 30°～35°~||~35°～45°~||~45°～50°~||~50°～55°
3.PARACEL:N TO NE 6 AND UP TO 10 IN NA. 4000 M IN FRQ SQUALLY SHWRS AND TS. SEA 2 M AND UP TO 8-9 IN NA. SWELL E TO NE 4-5. FROM the above broadcast, the visibility will be ______.
单选题A. good~||~verygood~||~poor~||~moderate
4.一般地面反气旋中心气压值在（）
单选题A. 1000～1020hPa之间，目前的最高记录是10533hPa~||~1040～1060hPa之间，目前的最高记录是10833hPa~||~1020～1040hPa之间，目前的最高记录是10833hPa~||~一般在980～1000hPa之间，目前的最高记录是10333hPa
5.在国外地面天气图上，低压中心标注“（）”。
单选题A. C~||~A~||~L~||~H
6.The commander of a rescue unit designated to co-ordinate search and rescue operations within a specified area is the ______.
单选题A. Generalcommander~||~Commandergeneral~||~On-scenecommander~||~Searchcommander
7.（）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
8.热带风暴(Tropical Storm，简写TS)，风速（）(风力8～11级)。
单选题A. 34～47kn~||~34～63kn~||~48～63kn~||~45～55kn
9.The bow thruster generally is ineffective at ______.
单选题A. over3knotsheadway~||~atanyspeedastern~||~atanyspeedahead~||~over1knotsternway
10.500hPa等压面的平均海拔高度约为（）
单选题A. 4500m~||~5000m~||~5500m~||~6000m
11.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
12.（）是指能够通过传感器自动更新的船舶运动参数
单选题A. 动态信息~||~静态信息~||~航次相关信息~||~安全相关短消息
13.On no account can they cut it______it be fouled.
单选题A. Do~||~would~||~shall~||~should
14.My vessel______bad weather with winds reaching force 9 on her way home．
单选题A. encountered~||~faced~||~found~||~Met
15.（）是冷、暖气团势力相当，互有进退，锋面在小范围内来回摆动的锋。
单选题A. 冷锋~||~暖锋~||~准静止锋~||~锢囚锋
16.地理经度和地理纬度的度量范围分别是（）
单选题A. 0～90o，0～90o~||~0～180o，0～180o~||~0～90o，0～180o~||~0～180o，0～90o
17.It takes about 12 seconds to reverse______full speed ahead______full speed astern．
单选题A. at，to~||~to，from~||~from，to~||~at，from
18.The approach to the roads and harbor from the______entails no difficulty．
单选题A. eastern~||~easterly~||~eastward~||~Eastwards
19.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
20.In the Northern Hemisphere, when the center of a high pressure system is due east of your position, you can expect winds from the ______.
单选题A. southtoeast~||~northtowest~||~northtoeast~||~southtowest
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