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? （）

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

How（）the cargo at loading port?

What is meant by veering the anchor chain? （）

I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.

（）your present speed?

（）both anchors.

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

The control of distress traffic is the responsibility of（）.

A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.