A.A backing wind
B.A veering wind
C.A norther
D.A strong，gusty wind
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A.wind direction remains steady
B.wind speed increases
C.barometer falls
D.All of the above
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
最新試題
Steady precipitation is typical of（）．
Two well-developed high pressure areas may be separated by a（）.
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
When a tornado moves over the water from land it is called a（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.
The passing of a low pressure system can be determined by periodically checking the（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
MIST is caused by（）.