A.period
B.range
C.distance
D.depth
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A.by
B.with
C.on
D.in
A.Northwesterly
B.Southwesterly
C.Southerly
D.Northerly
A.when the wind is against you
B.with the current setting against you
C.at slack water
D.with a cross current
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
A.fetch
B.distant winds
C.local storms
D.the pull of the moon
最新試題
Water may boil up around the stern of a vessel in a channel due to（）.
The steady current circling the globe at about 60°S is the（）.
The Benguela Current flows in a（）.
A wave entering（）is likely to produce bores．
The tide is（）.
Neap tides occur when the（）.
Which current would you encounter on a direct passage from southern Africa to Argentina，South America（）.
The set of the current is the（）.
The two most effective generating forces of surface ocean currents are（）.
Neap tides occur（）.