Which of the following is not a form of precipitation?（）

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

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（）.

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

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

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

（）is where the crew eat their meals.

Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.

A tide is called diurnal when（）.

What is it called when it is possible to ignite the vapour above the oil?（）