A.falls／in
B.has been falling／on
C.has fallen／at
D.is falling／in
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A.is flowing towards the land
B.is moving towards the ocean
C.level is not changing
D.level is rising because of heavy rains
A.Prevailing Westerly
B.Sub-Polar Flow
C.West Wind Drift
D.Humboldt Current
A.the density of the water
B.the air temperature
C.the presence of a high pressure area near it
D.underwater soil conditions
A.density differences of the water
B.rotation of the earth
C.direction of primary circulation of air
D.all of the above
A.north
B.east
C.southwest
D.northwest
最新試題
Which current is responsible for the movement of icebergs into the North Atlantic shipping lanes（）.
The set of the current is the（）.
The velocity of the current in large coastal harbors is（）.
Tide is（）in direction ENE.
Tides are superimposed on nontidal rising and falling water levels，caused by（）．
Spring tides are tides that（）.
Tropic tides are caused by the（）.
The steady current circling the globe at about 60°S is the（）.
The velocity of a rotary tidal current will be decreased when the Moon is（）.
The winds with the greatest effect on the set，drift，and depth of the equatorial currents are the（）.