A.Falkland Current
B.Brazil Current
C.Norway Current
D.Benguela Current
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A.Iceland Current
B.Baltic Current
C.Labrador Current
D.Baffin Current
A.Diurna
B.Semi-diurnal
C.Solar
D.Mixed
A.Add one hour to the times listed under the reference stations
B.Subtract one hour from the time differences listed for the subordinate stations
C.Apply no correction as the times in the reference stations are adjusted for daylight savings time
D.Add 15° to the standard meridian when calculating the time difference
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
最新試題
Neap tides occur（）.
The tide is（）.
The term flood current refers to that time when the water（）.
The winds with the greatest effect on the set，drift，and depth of the equatorial currents are the（）.
To make sure of getting the full advantage of a favorable current，you should reach an entrance or strait at what time in relation to the predicted time of the favorable current?（）
Water may boil up around the stern of a vessel in a channel due to（）.
Priming of the tides occurs（）.
You are anchoring in a river where the current is from one direction only.The best way to lay out two anchors is to have them（）.
When daylight savings time is kept，the time of tide and current calculations must be adjusted.One way of doing this is to（）.
The velocity of a rotary tidal current will be decreased when the Moon is（）.