A.2 minutes
B.3 minutes
C.4 minutes
D.5 minutes
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最新試題
I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.
Some goods are missing（）terrible weather.
The control of distress traffic is the responsibility of（）.
The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.
All VHF marine band radios operate in the simplex mode，which means that（）.
Should that kind of weather（），the two ships would touch each other.
There is a drifting mine（）in position 21 degrees 31 minutes North 124 degrees 20 minutes East.
How should the letter O be pronounced when spoken on the radiotelephone?（）
（）your present speed?
（）both anchors.