A.clearing weather
B.that a warm front has passed
C.probable thunderstorm activity
D.an approaching hurricane or typhoon
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A.vertical air movements
B.heavy rainstorms
C.horizontal air movements
D.any movement of moist air
A.gradient current
B.density current
C.swift current
D.torrent current
A.FRONTAL FOG
B.MIXING FOG
C.ADVECTION FOG
D.RADIATION FOG
A.MIXING FOG
B.ADVECTION FOG
C.RADIATION FOG
D.ARCTIC SEA SMOKE
A.FRONTAL FOG
B.MIXING FOG
C.ADVECTION FOG
D.RADIATION FOG
最新試題
When your vessel is on or near the path of an approaching tropical storm the（）.
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
In the relatively calm area near the hurricane center，the seas are（）.
Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
The wind is（）and decreasing.
What kind of pressure systems travel in easterly waves（）.
In the Northern Hemisphere a wind is said to veer when the wind（）.
What is the first visible indication of the presence of a tropical cyclone or hurricane（）.
The passing of a low pressure system can be determined by periodically checking the（）.