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

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

Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）

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

The loading of the ship must be done in accordance with（）.

The ISM code is part of（）.

Manoeuvring information can not be obtained from（）.

A tide is called diurnal when（）.

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

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