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

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

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

The dew point temperature is（）.

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

Manoeuvring information can not be obtained from（）.

Before any loading takes place any signs of the previous cargo should do（）.

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

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

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