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1.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
2.()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
3.The circular steel structure installed around the propeller of a towboat is the______.
单选题A. nozzle~||~shroud~||~strut~||~Hood
4.()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
5.7级风速为()m/s。
单选题A. 108-138~||~6-10~||~8-12~||~139-171
6.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
7.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
8.In the daytime, you see a large sailing vessel on the beam. You know that she is also propelled by machinery if she shows ______.
单选题A. ablackball~||~ablackcone~||~twoblackcones~||~abasket
9.______get your engine ready before six tomorrow morning.
单选题A. You’dbetter~||~Youwouldbetter~||~Youatleast~||~Youatmost
10.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
11.“东风送湿,西风送干”的交换方式属于()
单选题A. 平流~||~辐射~||~湍流~||~对流
12.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
13.在远离海岸的深海中,表层风海流的流向()
单选题A. 与风向反向~||~在北半球偏于风的去向右边45°~||~与风向同向~||~在北半球偏于风的来向右边45°
14.选择双向推荐航线时,应将航线设计在推荐航线()适当的地方,以尽可能地避免航行中与来船构成对遇和不协调避让局面。
单选题A. 右侧~||~左侧~||~任何一侧~||~推荐航线上
15.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
16.Navigational warnings and weather bulletins for shipping ______ from Singapore Radio.
单选题A. broadcast~||~broadcasted~||~arebroadcast~||~arebroadcasted
17.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°
18.使锋面向冷空气一侧倾斜的主要原因是()
单选题A. 气压梯度力作用~||~地球自转运动的作用~||~水平方向的空气流动~||~冷暖气团相互抬挤
19.()地区日较差比潮湿地区的大。
单选题A. 沙漠~||~大洋~||~沿岸~||~内陆
20.通常将海陆热力差异形成的季风称为海陆季风,它主要出现在()
单选题A. 低纬地区~||~高纬地区~||~极地地区~||~赤道地区
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