A.clockwise around the North Atlantic and North Pacific Oceans
B.clockwise or counterclockwise depending on whether it is warm or cold current
C.counterclockwise except in the Gulf Stream
D.counterclockwise around the North Atlantic and North Pacific Oceans
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A.seiche
B.bore
C.boundary wave
D.surge
A.apogean tide
B.double high water
C.perigean tide
D.bore
A.rollers
B.breakers
C.white caps
D.surfers
A.the direction of the true wind
B.true north
C.the beam on the windward side
D.the beam on the lee side
A.transmitter
B.transducer
C.transceiver
D.amplifier
最新試題
The presence of stratus clouds and a dying wind will usually result in（）.
The direction of the surface wind is（）.
In the Northern Hemisphere the major ocean currents tend to flow（）.
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（）.
Ocean currents are well defined and（）.
In a tropical cyclone，in the Northern Hemisphere，a vessel hove to with the wind shifting counterclockwise is（）.
The currents are（）mosoonal origin．
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（）.
The height of a wave is the vertical distance（）.
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（）.