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（）.

Berthing means bringing a vessel to her berth until（）.

ECDIS must be able to perform all of the following EXCEPT（）.

（）is on the panel of radar.

（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.

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

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

Manoeuvring information can not be obtained from（）.

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

When the wave period and the apparent rolling period are the same（）.