A.transmitter
B.transducer
C.transceiver
D.amplifier
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A.Effect of the moon's gravity
B.Fetch
C.Wind velocity
D.Length of time a wind has been blowing
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
最新試題
The apparent wind can be zero when the true wind is from（）.
In mid-ocean，the characteristics of a wave are determined by three factors. What is NOT one of these factors?（）.
Advection fog holds longest over which portions of the lakes?（）
The horse latitudes are characterized by（）.
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（）.
A tide is called diurnal when（）.
The drift and set of tidal，river，and ocean currents refer to the（）.
The height of a wave is the vertical distance（）.
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)（）.