A.Hydrus
B.Leo
C.Centaurus
D.Aquila
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A.Cygnus
B.Pegasus
C.Ursa Major
D.Andromeda
A.Maritime Safety Information
B.Maritime Shipping Index
C.Maritime Satellite Indicator
D.Mariner Safety Intelligence
A.litmus paper
B.combustible gas indicator
C.oxygen breathing apparatus
D.oxygen indicator
A.longitudinally
B.vertically
C.transversely
D.intermittently
A.between sunset and sunrise
B.only between 8 AM and 4 PM
C.during daylight hours in any visibility
D.during daylight hours in unrestricted visibility only
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Control of fire should be addressed（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Clouds with the prefix “nimbo” in their name（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Day-shapes must be displayed（）.
Dacron sails，when not in use，may be damaged if（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
Conventional anchors are least likely to hold in a bottom consisting of（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.