专项训练四

卷面总分：100分
答题时间：100分钟
题量：76题
题型：单选题
试卷简介: 专项训练四, 此试卷为参加"航海英语【二三副甲类】"的考生提供的"专项训练四"的答案和解析。
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1 单选题 1分
In IALA Region B，a red triangular daymark marks ______.
  • A.the centerline of a navigable channel
  • B.the starboard side of a channel
  • C.a prominent object of navigational interest that has no lateral significance
  • D.an area of a channel where passing another vessel is permitted
2 单选题 1分
The Rules state that certain factors are to be taken into account when determining safe speed. One of the factors is ___.
  • A.Whether radio communications that are available
  • B.maximum speed of your vessel
  • C.temperature
  • D.current
3 单选题 1分
The port at which crew or passengers get on board the ship is called ______．
  • A.port of call
  • B.port of embarkation
  • C.port of destination
  • D.port of disembarkation
4 单选题 1分
The two most effective generating forces of surface ocean currents are ______.
  • A.temperature and salinity differences in the water
  • B.wind and density differences in the water
  • C.water depth and underwater topography
  • D.rotation of the Earth and continental interference
5 单选题 1分
A hygrometer is a device used for determining ______.
  • A.the absolute temperature
  • B.atmospheric pressure
  • C.wind velocity
  • D.relative humidity
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