Bales close to the deckhead should be covered to prevent（）.

The company should establish and maintain procedures to control all documents and date which are relevant to（）.

It is dangerous for vessels without the operational radar（）the estuary.

Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.

The mean draft of a ship is the draft（）.

Full details of all lights and fog signals are shown on（）.

The ISM code is part of（）.

Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）

The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.

The circulation around a low pressure center in the Northern Hemisphere is（）.