A.depths in Malacca and Singapore Straits are stable
B.depths in Malacca and Singapore Straits are changeable
C.depths in Malacca and Singapore Straits are invariable
D.depths in Malacca and Singapore Straits are the same all the time
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A.totally enclosed
B.glass-reinforced plastic
C.self-righting
D.powered
A.a draft
B.a freeboard
C.an air draft
D.an under-keel clearance
A.supplied with
B.equipped with
C.manned with
D.fitted with
A.stop engines
B.hold course and speed
C.alter course to port
D.sound the danger signal
A.Tidal Current Tables
B.Tide Tables
C.Publications from CCS
D.Sailing Directions
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Bales close to the deckhead should be covered to prevent（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
Manoeuvring information can not be obtained from（）.
Which of the following is not an operation mode of AIS?（）
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
Full details of all lights and fog signals are shown on（）.
The dew point temperature is（）.
（）is on the panel of radar.
When steering by autopilot,how often should the steering be checked?（）
The ISM code is part of（）.