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（）.

Fog is likely to occur when there is little difference between the dew point and the（）.

（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.

In the Northern hemisphere northerly winds may cause temperature（）.

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

Manoeuvring information can not be obtained from（）.

What is a CORRECT reply to a pilot’s request, How’s your heading?（）

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

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

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