单项选择题
A.GL WNG B.GEN SYN C.STM WNG D.TY WNG
LOW ABOUT 300 MILES SOUTHWEST OF LISBON 1004 MOVING SLW...
单项选择题LOW ABOUT 300 MILES SOUTHWEST OF LISBON 1004 MOVING SLWLY SOUTHEAST COMMA FILLING 1006 BY MIDNIGHT.This phrase is likely to be under the heading of().
A.GALE WARNING B.24 HOURS FORECAST C.GENERAL SITUATION D.TROPICAL CYCLONE WARNING
Information for updating nautical charts is primarily f...
单项选择题Information for updating nautical charts is primarily found in the().
A.Notice to Mariners B.Coast Pilots C.nautical chart catalogs D.Sailing Directions
In revised editions of Admiralty charts the()are correc...
单项选择题In revised editions of Admiralty charts the()are corrected first.
A.smaller scales B.larger scales C.smaller scales and larger scales D.moderate scales