A.A continuous sounding with any fog signal apparatus
B.A signal sent by radiotelephone consisting of the spoken word Mayday
C.An International Code Signal of N.C
D.The firing of green star rockets or shells
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A.a distinctive signal
B.the Morse Code signal for SOS
C.a computerized voice announcement of Mayday
D.your vessel's International Radio Call Sign
A.Control bleeding
B.Reduce pain
C.Immobilize a fracture
D.Reset the bone
A.An amount equal to the depth of the water
B.Two times the depth of water
C.Three to four times the depth of water
D.Five to seven times the depth of water
A.Carbon disulfide
B.Ethyl alcohol
C.Isoprene
D.Oleum
A.distance
B.largeness
C.diameter
D.measurerment
最新試題
The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.
Which radiotelephone signal indicates receipt of a distress message?（）
There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
What does the term TO NAVIGATE WITH CAUTION mean?（）.
There is plenty of（）at this area.
What happens to the efficiency of an anchor when it is moved from sand to mud?（）
The vessel was drifted off from her（）due to strong wind.
What is required to launch a boat stowed in a crescent davit?（）
The transmission of messages respecting the dangers specified is free（）cost to the ships concerned.
PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）