A.Upwind
B.Downwind
C.Crosswind
D.Downcurrent
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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
A.apparent wind speed only
B.true wind speed and true wind direction
C.true wind speed only
D.apparent wind speed and true wind direction
A.high clouds
B.middle clouds
C.low clouds
D.vertical development clouds
最新試題
The passing of a low pressure system can be determined by periodically checking the（）.
What kind of pressure systems travel in easterly waves（）.
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（）.
In regions near the poles，the winds are generally described as（）.
In the relatively calm area near the hurricane center，the seas are（）.
In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.
When a tornado moves over the water from land it is called a（）.
When experiencing heavy winds，you should reef sails to（）.
MIST is caused by（）.