How（）the cargo at loading port?

There is a drifting mine（）in position 21 degrees 31 minutes North 124 degrees 20 minutes East.

The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.

I’d like to know something about the cargo condition at the loading port（）detail.

A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.

The generators on your rig have shut down，leaving you without navigation lights. Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? （）

（），you can’t finish discharging tomorrow!

（）your present speed?

How should the letter O be pronounced when spoken on the radiotelephone?（）

You are making a telephone call ship-to-shore using the VHF-FM service.You can tell that the working channel is busy if you hear（）.