A.are tracked on reciprocal bearings
B.are tracked at the same range
C.are tracked on the same bearing
D.pass closely to each other
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A.the vapor and air mixture is too rich
B.it is mixed with certain proportions of air
C.the vapor is too little compared to the air
D.it is of heavy toxicity
A.manifold
B.remote pull box
C.discharge nozzle
D.machinery space
A.AIS
B.SSAS
C.SSP
D.SART
A.Maintain balance and move with agility
B.Climb up and down vertical ladders and stairways
C.Open and close watertight doors
D.Take part in vessel evacuation procedures
A.small-scale charts
B.medium-scale charts
C.large-scale charts
D.natural scale charts
最新試題
A tide is called diurnal when（）.
Before any loading takes place any signs of the previous cargo should do（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
The helm command PORT TWENTY means（）.
When steering by autopilot,how often should the steering be checked?（）
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
ECDIS must be able to perform all of the following EXCEPT（）.
Manoeuvring information can not be obtained from（）.
It is dangerous for vessels without the operational radar（）the estuary.