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 mid-ocean，the characteristics of a wave are determined by three factors. What is NOT one of these factors?（）.
A tide is called diurnal when（）.
The edge of a hurricane has overtaken your vessel in the Gulf of Mexico，and the northwest wind of a few hours ago has shifted to the west. This is an indication that you are located in the（）.
In shallow water，waves that are too steep to be stable，causing the crests to move forward faster than the rest of the wave，are called（）.
The horse latitudes are characterized by（）.
The largest waves (heaviest chop) will usually develop where the wind blows（）.
The direction of the southeast trade winds is a result of the（）.
The height of a wave is the vertical distance（）.
The cold ocean current which meets the warm Gulf Stream between latitudes 40°and 43°N to form the cold wall is called the（）.
Low pressure disturbances，which travel along the intertropical convergence zone，are called（）.