单项选择题
The term flood current refers to that time when the water（）.
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
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相关考题
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单项选择题
The steady current circling the globe at about 60°S is the（）.
A.Prevailing Westerly
B.Sub-Polar Flow
C.West Wind Drift
D.Humboldt Current -
单项选择题
The speed of an ocean current is dependent on（）.
A.the density of the water
B.the air temperature
C.the presence of a high pressure area near it
D.underwater soil conditions -
单项选择题
The set of the ocean current is caused by（）.
A.density differences of the water
B.rotation of the earth
C.direction of primary circulation of air
D.all of the above
