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
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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（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
The direction of prevailing winds in the Northern hemisphere is caused by the（）.
Steady precipitation is typical of（）．
In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.
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（）.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
Two well-developed high pressure areas may be separated by a（）.
The wind is（）and decreasing.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.