單項選擇題Early indications of the approach of a hurricane may be all of the following EXCEPT（）.
A.short confused swells
B.gradually increasing white clouds (mare's tails)
C.pumping barometer
D.continuous fine mist-like rain
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1.單項選擇題Cirrus clouds are composed primarily of（）.
A.ice crystals
B.water droplets
C.snow crystals
D.nitrogen
2.單項選擇題An aneroid barometer reading should be corrected for differences in（）.
A.elevation
B.temperature
C.wind speed
D.latitude
最新試題
MIST is caused by（）.
題型：單項選擇題
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
題型：單項選擇題
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
題型：單項選擇題
What is the first visible indication of the presence of a tropical cyclone or hurricane（）.
題型：單項選擇題
The passing of a low pressure system can be determined by periodically checking the（）.
題型：單項選擇題