单项选择题
A.freshets B.floods C.river flows D.seismic events
A.speed of the current at a particular time B.maximum speed of the current C.direction from which the current flows D.direction in which the current flows
A.SW'ly direction along the NW coast of Africa B.S'ly direction off the East Coast of Australia C.NW'ly direction along the SW coast of Africa D.SW'ly direction along the SE coast of Greenland