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
The doldrums are characterized by（）.
What is the first visible indication of the presence of a tropical cyclone or hurricane（）.
In the Northern Hemisphere，if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on the（）.
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，an observer at point II in the weather system should experience a wind shift from the（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
In the relatively calm area near the hurricane center，the seas are（）.
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
The wind is（）and decreasing.
The passing of a low pressure system can be determined by periodically checking the（）.