A.vertical distance from the tidal datum to the ocean bottom plus the height of the tide
B.vertical distance from the tidal datum to the ocean bottom
C.average height of water over a specified period of time
D.average height of all low waters at a place
您可能感興趣的試卷
你可能感興趣的試題
A.capital letters
B.italics
C.boldface print
D.underlined letters
A.conspicuous
B.inconspicuous
C.a government facility or station
D.a radio transmitter
A.does not change
B.improves rapidly
C.improves only slightly
D.becomes poor
A.stop
B.to stop
C.stopping
D.stopped
A.you recovery
B.you recover
C.you recovering
D.you recovered
最新試題
Weekly NMs are available without subscription from appointed（）.
Navigational warnings and weather bulletins for shipping（）from Singapore Radio.
Many navigational warnings are of a temporary nature，but others remain in force for several months or may be succeeded by（）.
Information for updating nautical charts is primarily found in the（）.
On notification by Admiralty Notice to Mariners that a new edition of one of the books，or a new supplement to one，has been published，it should be obtained（）.
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
Vessels should not anchor or trawl in the vicinity of pipelines and are（）in the pipeline area shown on the chart.
Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．
The best estimate of the wind direction at sea level can be obtained from observing the direction of the（）.
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）