A.Overhead power lines
B.Louisiana-Mississippi ferry crossings
C.Two railroad trestles
D.Two submerged oil pipelines
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A.fish trap area
B.pipeline
C.demarcation line
D.cable area
A.cloud movement
B.vessel heading
C.waves
D.swells
A.extremely cold air from shore passes over warmer water
B.warm dry air from shore passes over cooler water
C.cold ocean water evaporates into warm air
D.cool rain passes through a warm air mass
A.FORECAST
B.GALE WARNING
C.SYNOPSIS
D.STORM WARNING
A.Supplements
B.Annual Summary
C.Navigational Warnings
D.Notices to Mariners
最新試題
Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer（）.
Vessels should not anchor or trawl in the vicinity of pipelines and are（）in the pipeline area shown on the chart.
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（）.
The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
What is the most important source of information to be used in correcting charts and keeping them up to date（）.
In revised editions of Admiralty charts the（）are corrected first．
Weekly NMs are available without subscription from appointed（）.
What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.
The height of a tide can be increased by（）.
The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.