A.east
B.west
C.east in west longitude and west in east longitude
D.west in west longitude and east in east longitude
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A.Snowfall or blowing snow
B.Lack of ability to estimate distance
C.Harsh contrast between sun-illuminated snow cover and the background
D.Hazy horizons with extensive mirage effects
A.release
B.relate
C.relieve
D.retain
A.take
B.think
C.believe
D.consider
A.what
B.that
C.which
D.who
A.received
B.retrieved
C.relieved
D.resumed
最新試題
During which condition should the operator of a pedestal crane shutdown operations?（）
Each hand portable，semi-portable and fixed fire extinguishing unit on a ship must be tested and inspected at least once every（）.
During the month of October the Sun’s declination is（）.
Foam-type portable fire extinguishers are most useful in combating fires involving（）.
During oil transfer operations，who is responsible for ensuring that the posted transfer procedures are followed?（）
Fire protection and manning regulations for towing vessels state that the Master or person in charge must ensure that all crew members who have not participated in the drills or received the safety orientation（）.
Each fire pump on a tanker must have a pressure gauge located at（）.
Fire protection regulations apply to those towing vessels（）.
During the winter months，the southeast trade winds are（）.
During the course of a voyage，a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident，Injury or Death if the（）.