A.will
B.shall
C.can
D.may
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A.will
B.can
C.shall
D.may
A.of
B.in
C.on
D.at
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
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Before any loading takes place any signs of the previous cargo should do（）.
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The ISM code is part of（）.
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（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
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