A.steady rainfall
B.hail storms
C.thunderstorms
D.tornadoes or waterspouts
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A.drops，and the temperature drops
B.drops，and the temperature rises
C.rises，and the temperature drops
D.rises，and the temperature rises
A.fluctuates
B.remains the same
C.remains the same，with clouds forming rapidly
D.rises，often quite rapidly，with clearing skies
A.Backing (of wind)
B.Beach (to)
C.Veering (of wind)
D.Maintaining direction of the wind
A.summarizes a great deal of information
B.can be interpreted accurately
C.appears daily
D.is prepared by the Weather Bureau
A.shift in a clockwise manner
B.shift in a counterclockwise manner
C.continue blowing from the same direction
D.decrease in velocity
最新試題
While on watch，you notice that the air temperature is dropping and is approaching the dew point.Which type of weather should be forecasted（）.
The winds you would expect to encounter in the North Atlantic between latitudes 5° and 30° are known as the（）.
When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.
Mechanical lifting of air by the upslope slant of the terrain is called（）.
Widely spaced isobars on a weather map indicate（）.
Which general weather conditions should you expect to find in a low pressure system（）.
Gale warnings are usually issued when winds of（）8-9 are expected．
The Beaufort scale is used to estimate the（）.
Which of the following is not a frontal term（）.
If the sky was clear，with the exception of a few cumulus clouds，it would indicate（）.