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
The wind is（）and decreasing.
When experiencing heavy winds，you should reef sails to（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
Steady precipitation is typical of（）．
The passing of a low pressure system can be determined by periodically checking the（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
In regions near the poles，the winds are generally described as（）.
Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.