A.vary
B.variable
C.variably
D.variability
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A.vertical movement of the water
B.horizontal movement of the water
C.density changes in the water
D.None of the above
A.dike
B.revetment
C.cutoff
D.crib
A.directional current
B.forward current
C.propeller current
D.wake current
最新試題
Spring tides are tides that（）.
The velocity of the current in large coastal harbors is（）.
A wave entering（）is likely to produce bores．
The steady current circling the globe at about 60°S is the（）.
Neap tides occur（）.
Priming of the tides occurs（）.
The set of the current is the（）.
The term flood current refers to that time when the water（）.
Tides are superimposed on nontidal rising and falling water levels，caused by（）．
The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.