A.westerly
B.parallel to the isobars in the warm sector
C.toward the nearest high pressure area
D.faster than the accompanying cold front
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A.clearing weather
B.that a warm front has passed
C.probable thunderstorm activity
D.an approaching hurricane or typhoon
A.vertical air movements
B.heavy rainstorms
C.horizontal air movements
D.any movement of moist air
A.Skull and crossbones
B.Yellow and white
C.Red and white
D.White and black
A.soft clay
B.hard mud
C.very soft mud
D.sand
A.immediately after restoring vital services
B.immediately
C.following control of flooding
D.following establishment of fire boundaries
最新試題
Corrosive liquids and acids should have which kind of label?（）
Clouds with the prefix “nimbo” in their name（）.
Control of fire should be addressed（）.
Charts showing the coast of Mexico are produced by the United States（）.
Chronometer error may be found by（）.
Complete information on weather broadcasts throughout the world is contained in（）.
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form，indicate（）.
Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.