A.at sea
B.the ship was at sea
C.she was at sea
D.they w re at sea
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A.at
B.by
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最新試題
The helm command PORT TWENTY means（）.
The dew point temperature is（）.
According to the relevant regulation, lifeboat should be powered by（）.
Manoeuvring information can not be obtained from（）.
（）is where the crew eat their meals.
Before any loading takes place any signs of the previous cargo should do（）.
Which of the following is not a form of precipitation?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Bales close to the deckhead should be covered to prevent（）.
ECDIS must be able to perform all of the following EXCEPT（）.