A.wind direction remains steady
B.wind speed increases
C.barometer falls
D.All of the above
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A.bring the sails parallel to the wind
B.reduce sail area exposed to the wind
C.allow the sails to catch more wind
D.remove all tension on the main and jib sheets
A.Tornado
B.Waterspout
C.Hurricane
D.Cyclone
A.High pressure area
B.Extratropical low-pressure system
C.Tropical storm
D.Easterly wave
A.a high pressure area
B.an extratropical cyclone
C.a tropical storm
D.an easterly wave
A.High pressure
B.Low pressure
C.Subsurface pressure
D.Terrastatic pressure
最新試題
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
What kind of pressure systems travel in easterly waves（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
You have determined that you are in the right semicircle of a tropical cyclone in the Northern Hemisphere.What action should you take to avoid the storm（）.
Steady precipitation is typical of（）．
In the relatively calm area near the hurricane center，the seas are（）.
The passing of a low pressure system can be determined by periodically checking the（）.
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
MIST is caused by（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.