單項選擇題Charted depths are decreased()2 meters.

A.in
B.on
C.with
D.by


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1.單項選擇題Chief, I see that ship()to her port.

A.turns
B.turning
C.to turn
D.be turning

2.單項選擇題Currents are()in rate and direction.

A.vary
B.variable
C.variably
D.variability

3.單項選擇題Do not pass()my port side.

A.at
B.on
C.in
D.from

4.單項選擇題Fifty bags melted due to()of the cargo.

A.mixed marks
B.nature
C.rottenness
D.numbers

5.單項選擇題Figure of cargo short-landed in().

A.dispute
B.argue
C.debate
D.discuss