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
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Chart legends printed in capital letters show that the associated landmark is（）.
Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.
Clouds form（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Charts showing the coast of Mexico are produced by the United States（）.
Deck beams on a ship are generally spaced at equal intervals and run（）.
Define the acronym MSI（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.