A.of
B.in
C.on
D.at
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A.are
B.is
C.were
D.was
A.change，depending on the location of the LCG
B.increase
C.decrease
D.remain constant
A.increase the brilliance of the PPI scope
B.turn off the interference controls on the radar
C.use the maximum available range setting
D.increase the radar signal output
A.take action to cross ahead of the other vessel
B.take action to pass astern of the other vessel
C.maintain course and speed
D.change course and increase speed
A.Deadweight Scale
B.Tide Tables
C.Notices to Mariners
D.Table of Azimuth
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（）is on the panel of radar.
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（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
The loading of the ship must be done in accordance with（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
What is it called when it is possible to ignite the vapour above the oil?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
When the wave period and the apparent rolling period are the same（）.