单选题In the Northern Hemisphere the major ocean currents tend to flow（）.Aclockwise around the North Atlantic and North Pacific OceansBclockwise or counterclockwise depending on whether it is warm or cold currentCcounterclockwise except in the Gulf StreamDcounterclockwise around the North Atlantic and North Pacific Oceans
单选题
In the Northern Hemisphere the major ocean currents tend to flow（）.
A
clockwise around the North Atlantic and North Pacific Oceans
B
clockwise or counterclockwise depending on whether it is warm or cold current
C
counterclockwise except in the Gulf Stream
D
counterclockwise around the North Atlantic and North Pacific Oceans
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