A.calls
B.called
C.calling
D.call
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A.telephone
B.telegraph
C.telex
D.VHF
A.calls at
B.has called at
C.call at
D.will call at
A.Calling frequency
B.Distress frequency
C.Urgency frequency
D.Working frequency
A.to be
B.is
C.will be
D.has been
A.at
B.by
C.in
D.on
最新試題
There is a drifting mine（）in position 21 degrees 31 minutes North 124 degrees 20 minutes East.
The present voyage of my ship began at the port of Shanghai after loading 8 000 tons of Cargo on board and ended after discharging the Cargo at the port of Hong Kong，which was（）.
The expression STAND-BY ENGINE means:（）.
Vessels wishing to communicate with the Port Health Officer should do（）on VHF Channel 14.
Channel 13 (156.65 MHz)，the designated bridge-to-bridge channel，may NOT be used to（）.
How（）the cargo at loading port?
What is meant by veering the anchor chain? （）
I am ready（）tow line.
If it（）fine tomorrow，we shall start unloading.
（）both anchors.