A.prevailing westerlies
B.geostrophic winds
C.doldrums
D.horse latitudes
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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
A.starboard bow and make as much headway as possible
B.starboard quarter，and make as much headway as possible
C.port quarter，and make as much headway as possible
D.port bow，and make as much headway as possible
最新試題
The apparent wind can be zero when the true wind is from（）.
Radiation fog（）.
The length of a wave is the length（）.
In some river mouths and estuaries the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream，and is called a（）.
Steam fog is most likely to occur on the Mississippi and Ohio Rivers in（）.
The cold ocean current which meets the warm Gulf Stream between latitudes 40°and 43°N to form the cold wall is called the（）.
A swift current occurring in a narrow passage connecting two large bodies of water which is produced by the continuously changing difference in height of tide at the two ends of the passage is called a(n)（）.
The horse latitudes are characterized by（）.
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（）.
In the Northern Hemisphere，your vessel is believed to be in the direct path of a hurricane，and plenty of sea room is available. The best course of action is to bring the wind on the（）.