The winds you would expect to encounter in the North Atlantic between latitudes 5° and 30° are known as the（）.

Widely spaced isobars on a weather map indicate（）.

What will a veering wind do（）.

Weather forecast messages are usually（）.

When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.

While on watch，you notice that the air temperature is dropping and is approaching the dew point.Which type of weather should be forecasted（）.

When a high pressure system is centered north of your vessel in the Northern Hemisphere（）.

Weather observations provided by each weather station include all of the following except（）.

When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear（）.

The AMVER system requires（）.