A.equatorial current
B.humidity
C.rotation of the earth
D.change of seasons
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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
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The currents are（）mosoonal origin．
The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.
In most cases，the direction of the apparent wind lies between the bow and（）.
In the Northern Hemisphere the major ocean currents tend to flow（）.
The presence of stratus clouds and a dying wind will usually result in（）.
The direction of the southeast trade winds is a result of the（）.
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（）.
The horse latitudes are characterized by（）.
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（）.