A.West or northwest
B.Northeast
C.Southeast
D.North
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A.forest fires
B.smoke from industrial areas
C.dust or sand storms
D.water droplets with the relative humidity more than 95%
A.low barometric pressure
B.high barometric pressure
C.falling barometric pressure
D.pumping barometric pressure
A.Is 50% water saturated
B.Is 90% water saturated
C.Temperature is greater than the dew point temperature
D.Temperature is equal to，or below the dew point temperature
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.westerly
B.parallel to the isobars in the warm sector
C.toward the nearest high pressure area
D.faster than the accompanying cold front
最新試題
In the Northern Hemisphere a wind is said to veer when the wind（）.
The passing of a low pressure system can be determined by periodically checking the（）.
In the Northern Hemisphere，if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on the（）.
The direction of prevailing winds in the Northern hemisphere is caused by the（）.
MIST is caused by（）.
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 is the first visible indication of the presence of a tropical cyclone or hurricane（）.
What kind of pressure systems travel in easterly waves（）.
Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.