A.of
B.on
C.for
D.at
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A.danger
B.dangered
C.dangeroused
D.dangerous
A.in
B.on
C.at
D.for
A.light than
B.lighter
C.light
D.lighter than
A.have
B.have been
C.has been
D.has
A.is going
B.be going
C.going
D.are going
最新試題
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
In the Northern hemisphere northerly winds may cause temperature（）.
Which of the following is not an operation mode of AIS?（）
The ISM code is part of（）.
When steering by autopilot,how often should the steering be checked?（）
When the wave period and the apparent rolling period are the same（）.
The mean draft of a ship is the draft（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.