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1.某港某日潮汐资料为:090692cm,1342418cm。该港该日1100的潮高为()
单选题A. 211cm~||~225cm~||~229cm~||~234cm
2.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
3.全球的热带气旋源地包括八大海区,即西北太平洋、东北太平洋、西南太平洋、北大西洋、孟加拉湾、阿拉伯海、南印度洋西部、澳大利亚西北等洋区,()则没有热带气旋发生。
单选题A. 东南太平洋和东南印度洋~||~东北太平洋和南大西洋~||~东南印度洋和南大西洋~||~东南太平洋和南大西洋
4.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
5.How many GMDSS operators are needed/required on board according to the provisions of the International Convention for the Safety of Life at Sea,1974?______.
单选题A. 4operators~||~3operators~||~2operators~||~1operator
6.The bow thruster generally is ineffective at ______.
单选题A. over3knotsheadway~||~atanyspeedastern~||~atanyspeedahead~||~over1knotsternway
7.一些大气污染成分在大气中发生化学变化从而会形成有害物质,则最常见的都有()
单选题A. 氮氧化物和粉尘~||~酸雨和粉尘~||~氮氧化物和光化学烟雾~||~酸雨和光化学烟雾
8.PUBLIC ADDRESS SYSTEM:LOUDSPEAKERS IN THE VESSEL’S CABINS, MESS ROOMS, ETC., AND ON DECK VIA WHICH IMPORTANT INFORMATION CAN BE BROADCAST FROM A CENTRAL POINT, MOSTLY FROM THE NAVIGATION BRIDGE defines ______.
单选题A. AA-system~||~PP-system~||~PA-system~||~AP-system
9.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
10.引起雷达测距随机误差的原因主要有()
单选题A. 气象海况目标反射能力雷达设备能力~||~气象海况目标反射能力雷达较准~||~气象海况雷达较准雷达调整~||~雷达较准目标反射能力雷达设备能力
11.目标的位置(距离和方位)数据在捕获后即可显示,目标的CPA在()左右(性能标准规定在1min之内)才能显示。
单选题A. 10s~||~20s~||~30s~||~40s
12.The approach to the roads and harbor from the______entails no difficulty.
单选题A. eastern~||~easterly~||~eastward~||~Eastwards
13.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
14.船位报告是()
单选题A. 一天三次的船位例行报告~||~为保持报告系统有效而进行的在必要时刻做出的报告~||~中午船位~||~船舶转向后作的船位报告
15.下列正确的说法是()
单选题A. 毛毛雨落在水面有波纹,落在甲板上无湿斑~||~毛毛雨落在水面无波纹,落在甲板上有湿斑~||~小雨落在水面会激起波纹或水花,落在甲板上可留下湿斑~||~小雨落在水面无波纹,落在甲板上可留下湿斑
16.It is the responsibility of the crane operator to, at all times, be aware of the location of the __.
单选题A. load~||~hook~||~boom~||~Alloftheabove
17.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
18.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
19.The correct method of switching off a marine radar is to turn power switch to ____ position fisrt, then to ______ position.
单选题A. off/standby~||~standby/off~||~standby/close~||~close/standby
20.()是影响海面能见度的主要因子。
单选题A. 风~||~浪~||~流~||~雾
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