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單項選擇題

The direction of the southeast trade winds is a result of the（）.

A.equatorial current
B.humidity
C.rotation of the earth
D.change of seasons

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單項選擇題

The currents are（）mosoonal origin．

A.from
B.on
C.in
D.of

單項選擇題

The cold ocean current which meets the warm Gulf Stream between latitudes 40°and 43°N to form the cold wall is called the（）.

A.North Cape Current
B.Labrador Current
C.Greenland Current
D.North Atlantic Current