A.is 50% water saturated
B.is 90% water saturated
C.temperature is greater than the dew point temperature
D.temperature is equal to，or below the dew point temperature
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A.in doubt that another vessel is taking sufficient action to avoid a collision
B.altering course to starboard
C.altering course to port
D.the stand-on vessel and will maintain course and speed
A.SOS three times
B.Additional transmissions to aid direction finding
C.E for one minute，followed by T for one minute
D.Two tones，10-15 seconds each
A.Pan-Pan (3 times)
B.Securite Securite Securite
C.TTT TTT TTT
D.No special prefix
A.PAN-PAN
B.MAYDAY
C.SOS
D.SECURITY
A.TTT
B.SOS
C.The spoken word URGENCY
D.The spoken word PAN
最新試題
The towing light is a(n)（）.
PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）
What does the term TO NAVIGATE WITH CAUTION mean?（）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
What is the（）of the turning circle in mavoeuvring?
The vessel was drifted off from her（）due to strong wind.
What is required to launch a boat stowed in a crescent davit?（）
Which is NOT a distress signal?（）
The two main types of load cells used in mooring tension gauges are（）.
What form of ice is of land origin?（）