單項(xiàng)選擇題（）of the following messages is allowed to be transmitted on the radiotelephone without the authority of the Master.

A.Urgency signal
B.Safety signal
C.Distress signal
D.None of the above


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你可能感興趣的試題

1.單項(xiàng)選擇題MV SUDAN/MEAN AT 0200UTC IN POSITION 40.44N 141.52E PASSED A DERELICT ABOUT 40 TONS HALF SUBMERGED AND IS DRIFTING. This cable says that she met with possibly（）.

A.a floating wreck
B.a survivor at sea
C.a man who had fallen overboard
D.a drilling rig

2.單項(xiàng)選擇題You hear on the radiotelephone the word SECURITE spoken three times. This indicates that（）.

A.a message about the safety of navigation will follow
B.a message of an urgent nature about the safety of a ship will follow
C.the sender is in distress and requests immediate assistance
D.you should secure your radiotelephone