Shipboard Emergency Drills must be carried out at least（）on board cargo ship.

（）is on the panel of radar.

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

Where would you find information about the time of high tide at a specific location on a particular day of the year?（）

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

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

When steering by autopilot,how often should the steering be checked?（）

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

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

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（）.