Bales close to the deckhead should be covered to prevent（）.

The ISM code is part of（）.

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

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

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

It is dangerous for vessels without the operational radar（）the estuary.

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

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

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（）.