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1.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
2.On no account can they cut it______it be fouled.
单选题A. Do~||~would~||~shall~||~should
3.气压梯度的大小取决于等压线的疏密程度。等压线越密集，（）
单选题A. 水平气压梯度小~||~水平气压梯度大~||~垂直气压梯度小~||~垂直气压梯度大
4.If the center of low pressure is due west of you in the Northern Hemisphere, which wind direction should you expect？
单选题A. Southtowest~||~Southtoeast~||~Westtonorth~||~Northtoeast
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.用一个扇形区(虚线)表示其未来移动方向和中心可能到达的位置。扇形前面概率圆边上的数字表示预报日期和时间，概率圆的概率约为（）
单选题A. 100%~||~80%~||~70%~||~50%
7.可以促使水汽在一定温度下凝结长大。（）→云消散。
单选题A. 上升运动~||~上升运动+水汽~||~水平运动+水汽~||~下沉运动
8.降水主要来自高层云和（）
单选题A. 层云~||~雨层云~||~淡积云~||~积雨云
9.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
10.罗北偏离真北的角度称为（）
单选题A. 磁差~||~自差~||~罗经差~||~陀罗差
11.Navigational warnings and weather bulletins for shipping ______ from Singapore Radio.
单选题A. broadcast~||~broadcasted~||~arebroadcast~||~arebroadcasted
12.气压场：锋面两侧的（）
单选题A. 气压梯度连续，等压线过锋线的折角指向低压~||~气压梯度连续，等压线过锋线的折角指向高压~||~气压梯度不连续，等压线过锋线的折角指向低压~||~气压梯度是不连续的，等压线通过锋面有指向高压的折角
13.当夏季风盛行时，则表现为（）的气候特征。
单选题A. 低温潮湿和少雨~||~高温干燥和少雨~||~高温潮湿和多雨~||~低温潮湿和多雨
14.船载AIS设备能够通过（）本船的静态信息、动态信息、航次相关信息和安全相关短消息。
单选题A. 寻址方式单独发送~||~寻址方式群发发送~||~雷达发送~||~广播方式周期性自动播发
15.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
16.极地大陆气团(Polar continental air mass)：（），空气层结稳定。
单选题A. 干燥低温天气晴朗~||~低温潮湿多阴天~||~干燥低温气层不稳定~||~干燥低温常阴天
17.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
18.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
19.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
20.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
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