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第1章 单元测试
1、Attention is called to the fact that in many cases pipelines are not _ and charted depths may be decreased by up to 2 meters.
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2、Depths of {wk.} are to be inserted in the chart.
答案：B. wreck
3、For full information regarding the current circulation of the Indian Ocean, __ Sailing Direction, Current Atlas, etc.
答案：open up
4、In Admiralty Sailing Directions, STRIPES is the word used to indicate __ marking.
答案：In a hospital.
5、In the Uniform Cardinal System of Buoyage, a buoy in the eastern quadrant from a danger could __.
答案：C. have a black top mark
6、The lateral system is used in .
答案：all of the above.
7、What would be the color of an IALA starboard hand lateral buoy, as seen when sailing toward land, in Europe?
答案：A. Green
8、When reversing, the tidal stream will have a period with little or no effect. This is call the. 答案：C. slack
9、The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for __.
答案：ordering dishes from the menu.
10、What is the tidal height?
答案：C. The water above the Lowest Astronomical Tide
11、Data relating to the direction and velocity of rotary tidal currents can be found in the __
答案：B. Tidal Current Tables
12、From __ the mariner can know the data of tide.
答案：Listlessly
13、Which is a weekly publication advising mariners of important matters affecting navigational Safety ?
答案：B. Notice to Mariners
14、In which source could you find the number of a chart for a certain geographic area?
答案：B. Catalog of Charts
15、All of the following information concerning lighted aids to navigation may be read directly from the light list except the __
答案：C. luminous range
16、The arrangement of charts in the catalogue is . 答案：climax
17、The datum from which the predicted heights of tides are reckoned in the tide table is _.
答案：A
18、Many of the soundings shown on the chart are derived from _ , Undue reliance should not be placed upon them.
答案：Inadequate and often very old surveys
19、Lines on a chart which connect points of equal magnetic variation are called __.
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