A.always forms over water
B.is formed by a temperature inversion
C.is thinnest at the surface
D.dissipates during the evening
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A.prevailing westerlies
B.geostrophic winds
C.doldrums
D.horse latitudes
A.create large waves in the direction of the current
B.change direction 360°during a 24 hour period
C.remain fairly constant in direction and velocity throughout the year
D.are characterized by a light green color
A.permanent waves
B.tidal waves
C.tropical waves
D.tropical storms
A.starboard bow，note the course，and head in that direction
B.starboard quarter，note the course，and head in that direction
C.port quarter，note the course，and head in that direction
D.port bow，note the course，and head in that direction
A.veering wind
B.backing wind
C.reverse wind
D.chinook wind
最新試題
Ocean currents are well defined and（）.
Cold water flowing southward through the western part of the Bering Strait between Alaska and Siberia is joined by water circulating counterclockwise in the Bering Sea to form the（）.
In the Northern Hemisphere，a wind that shifts counterclockwise is a（）.
The presence of stratus clouds and a dying wind will usually result in（）.
In most cases，the direction of the apparent wind lies between the bow and（）.
In the Northern Hemisphere the major ocean currents tend to flow（）.
In the Northern Hemisphere you are caught in the dangerous semicircle with plenty of sea room available. The best course of action is to bring the wind on the（）.
The apparent wind can be zero when the true wind is from（）.
Steam fog is most likely to occur on the Mississippi and Ohio Rivers in（）.
In a tropical cyclone，in the Northern Hemisphere，a vessel hove to with the wind shifting counterclockwise is（）.