A.Effect of the moon's gravity
B.Fetch
C.Wind velocity
D.Length of time a wind has been blowing
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A.ahead of the storm center
B.in the dangerous semicircle
C.in the navigable semicircle
D.directly in the approach path of the storm
A.Alaska Current
B.Subarctic Current
C.Kuroshio Current
D.Oyashio Current
A.air being warmed above the dew point
B.saturation of cold air by rain
C.a rapid cooling of the air near the surface of the Earth at night
D.warm moist air being blown over a colder surface
A.Northwest
B.Southeast
C.Northeast
D.Southwest
A.only one high and one low water occur during a lunar day
B.the high tide is higher and the low tide is lower than usual
C.the high tide and low tide are exactly six hours apart
D.two high tides occur during a lunar day
最新試題
In the Northern Hemisphere，a wind that shifts counterclockwise is a（）.
A tide is called diurnal when（）.
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（）.
Advection fog holds longest over which portions of the lakes?（）
The ocean bottom that extends from the shoreline out to an area where there is a marked change in slope to a greater depth is 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)（）.
Steam fog is most likely to occur on the Mississippi and Ohio Rivers in（）.
In some parts of the world there is often a slight fall in tide during the middle of the high water period. The effect is to create a longer period of stand at higher water. This special feature is called a(n)（）.
The horse latitudes are characterized by（）.
The apparent wind can be zero when the true wind is from（）.