A.a certain area
B.all ocean areas
C.some areas
D.important areas
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A.distance a wave travels between formation and decay
B.stretch of water over which a wave-forming wind blows
C.time in seconds required for two crests to pass a given point
D.measurement of a wave's steepness
A.Upwind
B.Downwind
C.Crosswind
D.Downcurrent
A.short confused swells
B.gradually increasing white clouds (mare's tails)
C.pumping barometer
D.continuous fine mist-like rain
A.ice crystals
B.water droplets
C.snow crystals
D.nitrogen
A.elevation
B.temperature
C.wind speed
D.latitude
最新試題
In the relatively calm area near the hurricane center，the seas are（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
In regions near the poles，the winds are generally described as（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
When a tornado moves over the water from land it is called a（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
When experiencing heavy winds，you should reef sails to（）.
MIST is caused by（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
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（）.