A.permanent waves
B.tidal waves
C.tropical waves
D.tropical storms
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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
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
A.seiche
B.bore
C.boundary wave
D.surge
最新試題
The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.
The place where a channel moves from along one bank of the river over to the other bank of the river is called a（）.
In most cases，the direction of the apparent wind lies between the bow and（）.
The length of a wave is the length（）.
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)（）.
Low pressure disturbances，which travel along the intertropical convergence zone，are called（）.
Advection fog holds longest over which portions of the lakes?（）
Ocean currents are well defined and（）.
The horse latitudes are characterized by（）.
The drift and set of tidal，river，and ocean currents refer to the（）.