A.equatorial current
B.humidity
C.rotation of the earth
D.change of seasons
您可能感興趣的試卷
你可能感興趣的試題
A.from
B.on
C.in
D.of
A.North Cape Current
B.Labrador Current
C.Greenland Current
D.North Atlantic Current
A.must be from dead ahead
B.speed must be zero
C.must be from dead astern
D.must be on the beam
A.ahead and equal to the ship's speed
B.astern and equal to the ship's speed
C.ahead and equal to twice the ship's speed
D.astern and equal to twice the ship's speed
A.spring，around late evening
B.spring，around early evening
C.fall，around early morning
D.fall，around midday
最新試題
In a tropical cyclone，in the Northern Hemisphere，a vessel hove to with the wind shifting counterclockwise is（）.
In mid-ocean，the characteristics of a wave are determined by three factors. What is NOT one of these factors?（）.
The apparent wind can be zero when the true wind is from（）.
The drift and set of tidal，river，and ocean currents refer to the（）.
Steam fog is most likely to occur on the Mississippi and Ohio Rivers in（）.
On the pole side of the trade wind belt，there is an area of high pressure with weak pressure gradients and light，variable winds. This area is called 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)（）.
In the Northern Hemisphere you are caught in the dangerous semicircle with plenty of sea room available. The best course of action is to bring the wind on the（）.
In the Northern Hemisphere the major ocean currents tend to flow（）.
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（）.