單項(xiàng)選擇題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


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1.單項(xiàng)選擇題Information for updating nautical charts is primarily found in the（）.

A.Notice to Mariners
B.Coast Pilots
C.nautical chart catalogs
D.Sailing Directions

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．

A.Mercator charts／Loran charts
B.Admiralty charts／Routeing charts
C.large scale charts／small scale charts
D.small scale charts／large scale charts

4.單項(xiàng)選擇題For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）

A.Plotting radio bearings over a long distance
B.Determining latitude and longitude of a fix
C.Measuring rhumb line distances
D.Measuring rhumb line directions

5.單項(xiàng)選擇題Fog is most commonly associated with a(n)（）.

A.warm front at night
B.low pressure area
C.anticyclone
D.lack of frontal activity