A.distress alert
B.urgency message
C.safety message
D.routine message
您可能感興趣的試卷
你可能感興趣的試題
A.distress alert
B.urgency message
C.safety message
D.routine message
A.low clouds
B.High clouds
C.Special clouds
D.medium clouds
A.Low cl;ouds
B.High clouds
C.Special clouds
D.medium clouds
A.Cirrostratus
B.Cirrus
C.Cirrocumulus
D.Altostratus
A.Cirrostratus
B.Cirrus
C.Cirrocmulus
D.Altostratus
最新試題
When the wave period and the apparent rolling period are the same（）.
When steering by autopilot,how often should the steering be checked?（）
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
What is it called when it is possible to ignite the vapour above the oil?（）
Manoeuvring information can not be obtained from（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
Bales close to the deckhead should be covered to prevent（）.
Which of the following is not a form of precipitation?（）
Which of the following is not an operation mode of AIS?（）