A.is decreased
B.decreased
C.decreases
D.are decreased
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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
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
最新試題
The height of a tide can be increased by（）.
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.
Many navigational warnings are of a temporary nature，but others remain in force for several months or may be succeeded by（）.
Steam smoke will occur when（）.
Periodic publications notifying changes in，or additions to，previously published navigational data are（）.
Steam smoke will occur when（）.
On a nautical chart，the inner ring of a compass rose indicates（）.
The fog most commonly encountered at sea is called（）.
What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.
SEARCHABLE NOTICES TO MARINERS can be searched by all the following options except（）.