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1.某地当日潮汐资料为:1200400cm,1900136cm,则潮高为300cm的潮时为()
单选题A. 1350~||~1457~||~1500~||~1330
2.东海和南海盛行东北季风,以东北浪居多,()东北浪占优势。
单选题A. 渤海海峡~||~北部湾~||~长江口~||~台湾海峡
3.()是常温下发生相变(固、气、液三态)的唯一大气成分,它也是造成云、雨、雪、雾等现象的主要物质源泉。
单选题A. 氮气~||~水汽~||~二氧化碳~||~臭氧
4.已知磁差Var=2°W,罗经差1°W,磁航向000°,则真航向为()
单选题A. 357°~||~358°~||~359°~||~003°
5.For working details______Admiralty list of Radio Signal
单选题A. refer~||~see~||~Look~||~watch
6.如果船舶距离另一国的领海基线不大于(),该国的国家LRIT数据中心都可以通过国际LRIT数据交换从船旗国国家LRIT数据中心获取该船舶的LRIT信息。
单选题A. 1000海里~||~100海里~||~10000海里~||~2000海里
7.若深海海面风向为SW风,则表层风海流的流向应为()
单选题A. 在北半球为南流在南半球为西流~||~在北半球为东流在南半球为北流~||~在北半球为北流在南半球为东流~||~在北半球为西流在南半球为南流
8.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
9.在海平面上大气压为1013hpa,高度每升高1000英尺(304.8m),降低()
单选题A. 35hpa~||~36hpa~||~37hpa~||~38hpa
10.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
11.入射雷达波与目标表面的夹角(),称为雷达视角
单选题A. (0°~90°)~||~(45°~90°)~||~(90°~130°)~||~(130°~175°)
12.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
13.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
14.水平气压梯度力与()
单选题A. 空气密度成反比,与气压梯度成正比~||~与空气密度成正比,水平气压梯度成正比~||~与空气密度成反比,水平气压梯度成反比~||~与空气密度成正比,水平气压梯度成反比
15.南太平洋的西风漂流日流速达10nmile,沿40°~50°S纬度圈流动,属于()
单选题A. 暖流~||~冷流~||~中性流~||~补偿流
16.MODERATE WAVES, TAKING A MORE PRONOUNCED LONG FORM;MANY WHITE HORSES ARE FORMED. This sea condition is likely to be termed ______.
单选题A. neargale~||~moderatebreeze~||~freshbreeze~||~strongbreeze
17.Several shoals______reported to exist in the area southwest of the Brothers.
单选题A. have~||~havebeen~||~has~||~hasbeen
18.A pattern according to which vessels and / or aircraft may conduct a co-ordinated search is a ___________.
单选题A. Researchpattern~||~Researchmode~||~Searchpattern~||~Searchandrescuemode
19.()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
20.热带气旋与温带气旋相比较,通常从中心向外围的大风变化为()
单选题A. 两者均迅速减小~||~前者迅速减小,后者缓慢减小~||~前者缓慢减小,后者迅速减小~||~两者均缓慢减小
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