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

The ISM code is part of（）.

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

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

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

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

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

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

In the Northern hemisphere northerly winds may cause temperature（）.

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