单项选择题
The Benguela Current flows in a（）.
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
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相关考题
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单项选择题
Swell is the rise and fall of the ocean’s surface due to（）.
A.fetch
B.distant winds
C.local storms
D.the pull of the moon -
单项选择题
Stand of the tide is that time when（）.
A.the vertical rise or fall of the tide has stopped
B.slack water occurs
C.tidal current is at a maximum
D.the actual depth of the water equals the charted depth -
单项选择题
Spring tides occur（）.
A.when the moon is new or full
B.when the moon and sun have declination of the same name
C.only when the moon and sun are on the same sides of the earth
D.at the beginning of spring when the sun is over the equator
