A.stormy weather is imminent
B.that present weather conditions will continue
C.a defect in the barometer
D.increasing wind strength
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A.moderate but easily navigated
B.calm
C.mountainous and confused
D.mountainous but fairly regular as far as direction is concerned
A.high relative humidity
B.frequent showers and thunderstorms
C.steep pressure gradients
D.frequent calms
A.steady，constant winds
B.frequent rain showers and thunderstorms
C.steep pressure gradients
D.low relative humidity
A.high winds
B.high overcast clouds
C.calm or light winds
D.fog or steady rain
A.north to south
B.south to north
C.east to west
D.west to east
最新試題
Which type of precipitation is a product of the violent convection found in thunderstorms（）.
When a tornado moves over the water from land it is called a（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
The passing of a low pressure system can be determined by periodically checking the（）.
What kind of pressure systems travel in easterly waves（）.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
Steady precipitation is typical of（）．
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.