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三副197道题

1.A vessel on the high seas that is not under command shall display which of the following day signals? ______

单选题

A. Twoblackballs~||~Threeblackballs~||~Tworedballs~||~Threeredballs

2.陀罗航向指()

单选题

A. 真北和陀罗北之间的夹角~||~真北和航向线之间的夹角~||~陀罗北和方位线之间的夹角~||~陀罗北和航向线之间的夹角

3.______20 targets can be tracked at one time.When maximum tracking capacity is reached,no further acquisitions(捕获) are possible.

单选题

A. Asmanyas~||~Somanyas~||~Asmuchas~||~Asmoreas

4.Several shoals______reported to exist in the area southwest of the Brothers.

单选题

A. have~||~havebeen~||~has~||~hasbeen

5.季风流的流速在苏门答腊附近约2kn,在斯里兰卡南部为2.5kn,在索马里东部为2~3kn。()赤道逆流的位置约在5°S附近,与东北季风流相接,形成了北印度洋冬季反时针方向的环流流系。

单选题

A. 冬季~||~秋季~||~夏季~||~春季

6.在()的作用下,在南、北半球副热带地区的对流层中上层气流辐合、聚积形成沿纬圈分布的稳定而深厚的暖性高压带,称副热带高压带,简称副高。

单选题

A. 太阳辐射和海陆分布~||~太阳辐射和地形影响~||~太阳辐射和地球自转~||~地球自转和海陆分布

7.If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the Northern Hemisphere?______.

单选题

A. Easttonortheast~||~Easttosoutheast~||~Northtonorthwest~||~Southtosoutheast

8.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

9.鞍形气压区,两个高压之间的狭长区域称为()

单选题

A. 低压带~||~高压带~||~低压槽~||~高压脊

10.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

11.危险货物报告是()

单选题

A. 船舶载有危险货物时所做出的报告~||~当船载危险货物在距岸200nmile范围内散失时所做出的报告~||~当船载危险货物在大洋上散失时所做出的报告~||~当船载危险货物在距岸100nmile范围内散失时所做出的报告

12.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

13.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

14.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

15.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

16.从地面向上随着高度的增加而空气密度则()

单选题

A. 缓慢递减~||~迅速递减~||~缓慢递增~||~迅速递增

17.气压是大气压强的简称,它与天气的关系是()

单选题

A. 低气压一般对应阴雨天气~||~高气压一般对应阴雨天气~||~高气压中心对应大风天气~||~低气压对应晴好天气

18.6和12nmile量程上有效,跟踪距离应至少延伸至()。

单选题

A. 10nmile~||~11nmile~||~12nmile~||~13nmile

19.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

20.A vessel engaged in fishing shall not impede the passage of______following a traffic lane.

单选题

A. (1)~||~(1)&(2)~||~(3)~||~(4)

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