试题详情

We( )the radio signals for help from the ship.

s a radio signal from the bottom of the ship to the sea-bed, from which it is reflected. A. The mar

Which of the following may be different for a ship to discharge oily mixtures resulted from machiner

Admiralty list of radio signals C. Admiralty list of lights and fog signals D. The mariner‘s handboo

The task will not be fulfilled we get help from other departments.(5.0)(5.0) (5.0)