A.visibility
B.winds
C.sea
D.fog
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A.stormy weather is imminent
B.that present weather conditions will continue
C.a defect in the barometer
D.increasing wind strength
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
最新試題
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
When a tornado moves over the water from land it is called a（）.
The strong wind will make us（）here for some days.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.
What kind of pressure systems travel in easterly waves（）.
The moisture equilibrium chart can be used to determine the（）.
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（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
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（）.
When experiencing heavy winds，you should reef sails to（）.