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
The doldrums are characterized by（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
When a tornado moves over the water from land it is called a（）.
What kind of pressure systems travel in easterly waves（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
The strong wind will make us（）here for some days.
In the relatively calm area near the hurricane center，the seas are（）.
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 a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.