Where would you find information about the time of high tide at a specific location on a particular day of the year?（）

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

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

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

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

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

Shipboard Emergency Drills must be carried out at least（）on board cargo ship.

（）is on the panel of radar.

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

The company should establish and maintain procedures to control all documents and date which are relevant to（）.