单项选择题
A.equatorial current B.humidity C.rotation of the earth D.change of seasons
The currents are（）mosoonal origin．A.fromB.onC.inD.of
单项选择题The currents are（）mosoonal origin．
A.from B.on C.in D.of
The cold ocean current which meets the warm Gulf Stream...
单项选择题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
The apparent wind’s speed can be zero only when two con...
单项选择题The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.
A.must be from dead ahead B.speed must be zero C.must be from dead astern D.must be on the beam
