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1.表示物理现象和大气状态的物理量的气象术语称为（）
单选题A. 气象要素~||~迅速递减~||~缓慢递增~||~迅速递增
2.Navigational warnings and weather bulletins for shipping ______ from Singapore Radio.
单选题A. broadcast~||~broadcasted~||~arebroadcast~||~arebroadcasted
3.浓雾警报，则海面能见度为（）。
单选题A. 05～5nmile~||~小于05nmile~||~小于2nmile~||~2～5nmile
4.The circular steel structure installed around the propeller of a towboat is the______．
单选题A. nozzle~||~shroud~||~strut~||~Hood
5.（），以数字表示、单位为km。
单选题A. 温度~||~降水量~||~水平能见度~||~现在天气现象
6.因霾使天空的云量、云状全部或部分不明时，（），相应栏记录可辨明部分的云状;若透过这些现象能完全辨明云量、云状时，则按正常情况记录。
单选题A. 低云状栏记"∞"，总低云量栏记"-"~||~云状栏记"∞"，总低云量栏记10~||~云状栏记"-"，总低云量栏记"-"~||~云状云量栏均不作记录
7.Get searchlight______for transiting the canal at night．
单选题A. on~||~already~||~Almost~||~ready
8.In beaufort wind scale，sea state with moderate waves，taking longer form，many whitecaps and some spray，is named as______．
单选题A. Strongbreeze~||~Freshbreeze~||~Stronggale~||~Gale
9.表层海水温度是指海水表面到（）深处之间的海水温度，以摄氏度(℃)为单位。
单选题A. 05m~||~1m~||~2m~||~5m
10.当气流从开阔地区进入峡口时，而（），称为峡谷风。
单选题A. 风速为零~||~风速不变~||~风速减小~||~风速增大
11.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
12.Several shoals______reported to exist in the area southwest of the Brothers．
单选题A. have~||~havebeen~||~has~||~hasbeen
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.在空气纬度和密度相同时，高气压区中等压线的分布规律是（）
单选题A. 曲率半径越小的地方越密集~||~曲率半径越大的地方越稀疏~||~曲率半径越小的地方越稀疏~||~等压线疏密与曲率半径无关
15.All the crewmembers shall be at the station as required by the muster list when in firefighting drill______minutes after hearing the alarm，and the duty engineer shall be able to make the fire pumps available with______minutes．
单选题A. 2/5~||~2/3~||~3/2~||~2/2
16.船舶恒向恒速运动时，陀螺罗经主轴的稳定位置与航速为零时主轴稳定位置二者在方位上的夹角称为（）
单选题A. 速度误差~||~摇摆误差~||~冲击误差~||~纬度误差
17.低层大气中，特别是在近地面附近，风向与等压线斜交，南半球是（）的气流系统
单选题A. 低层顺时针辐散~||~低层逆时针辐合~||~低层顺时针辐合~||~低层逆时针辐散
18.The approach to the roads and harbor from the______entails no difficulty．
单选题A. eastern~||~easterly~||~eastward~||~Eastwards
19.由于海面风的不同，风海流可分为（）
单选题A. 风生流和地转流~||~地转流和补偿流~||~定海流和地转流~||~定海流和风生流
20.Many of the lights on this coast are placed so high as to be frequently obscured by______．
单选题A. power~||~tower~||~cover~||~lowclouds
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