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
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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
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）
Periodic publications notifying changes in，or additions to，previously published navigational data are（）.
Steam smoke will occur when（）.
RYUKYU S TO SE 6 BEC 4－5.ISOL SHWRS.SEA 3 M BEC 2 M.SWELL SE 3－4M.This description is likely to be under the heading of（）.
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.
The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
Weekly NMs are available without subscription from appointed（）.
Section V of the ADMIRALTY NOTICES TO MARINERS is（）.
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
The fog most commonly encountered at sea is called（）.