A.black
B.setting
C.being
D.having
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A.falls／in
B.has been falling／on
C.has fallen／at
D.is falling／in
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
最新試題
Which current is responsible for the movement of icebergs into the North Atlantic shipping lanes（）.
Neap tides occur（）.
River currents tend to（）.
The term flood current refers to that time when the water（）.
Tropic tides are caused by the（）.
Stand of the tide is that time when（）.
A wave entering（）is likely to produce bores．
The tide is（）.
The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.
The velocity of the current in large coastal harbors is（）.