A.Notice to Mariners
B.Coast Pilots
C.nautical chart catalogs
D.Sailing Directions
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A.smaller scales
B.larger scales
C.smaller scales and larger scales
D.moderate scales
A.Mercator charts／Loran charts
B.Admiralty charts／Routeing charts
C.large scale charts／small scale charts
D.small scale charts／large scale charts
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
A.warm front at night
B.low pressure area
C.anticyclone
D.lack of frontal activity
A.in
B.on
C.with
D.by
最新試題
Which is the correct procedure for anchoring a small to medium size vessel in deep water （）.
Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer（）.
On the approach of a warm front the barometric pressure usually（）.
The range of a light on Admiralty Charts is normally the（）.
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
Navigational warnings and weather bulletins for shipping（）from Singapore Radio.
Steam smoke will occur when（）.
Steam smoke will occur when（）.
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（）.