单项选择题
A.Prevailing Westerly B.Sub-Polar Flow C.West Wind Drift D.Humboldt Current
The speed of an ocean current is dependent on（）.A.the d...
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
The set of the ocean current is caused by（）.A.density d...
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
The set of the equatorial countercurrent is generally t...
单项选择题The set of the equatorial countercurrent is generally to the（）.
A.north B.east C.southwest D.northwest
