A.at
B.by
C.to
D.for
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最新試題
According to the relevant regulation, lifeboat should be powered by（）.
Bales close to the deckhead should be covered to prevent（）.
What is it called when it is possible to ignite the vapour above the oil?（）
Which of the following is not a form of precipitation?（）
When the wave period and the apparent rolling period are the same（）.
A tide is called diurnal when（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
The ISM code is part of（）.
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（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.