A.close
B.open
C.switch off
D.switch on
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A.close up
B.switch on
C.open
D.switch off
A.switch on
B.switch off
C.close
D.open
A.invisible
B.it is invisible
C.isn't visible
D.unvisible
A.repairing
B.to repair
C.repairs
D.have repaired
A.tide is falling from high water to low water
B.tide is rising from low water to high water
C.tide is reaching to a highest level
D.tide is reaching to a lowest level
最新試題
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Which of the following is not a form of precipitation?（）
What is it called when it is possible to ignite the vapour above the oil?（）
The helm command PORT TWENTY means（）.
（）is where the crew eat their meals.
Full details of all lights and fog signals are shown on（）.
It is dangerous for vessels without the operational radar（）the estuary.
Which of the following shall not the officers in charge of the navigational watch do?（）
The company should establish and maintain procedures to control all documents and date which are relevant to（）.