单项选择题
A.doldrums B.horse latitudes C.trade winds D.prevailing westerlies
The velocity of the wind，its steady direction，and the a...
单项选择题The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.
A.temperature B.density C.deflection D.speed
The velocity of the current in large coastal harbors is...
单项选择题The velocity of the current in large coastal harbors is（）.
A.predicted in Tidal Current Tables B.unpredictable C.generally constant D.generally too weak to be of concern
The velocity of a rotary tidal current will be decrease...
单项选择题The velocity of a rotary tidal current will be decreased when the Moon is（）.
A.at apogee B.new C.full D.All of the above
