A.only one high and one low water occur during a lunar day
B.the high tide is higher and the low tide is lower than usual
C.the high tide and low tide are exactly six hours apart
D.two high tides occur during a lunar day
您可能感興趣的試卷
你可能感興趣的試題
A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay
A.crossing
B.transit
C.transfer
D.passing
A.directional current
B.forward current
C.propeller current
D.wake current
A.Shift weight to the bow
B.Shift weight to the center of the boat
C.Shift weight to the stern
D.Throw excess weight overboard
A.Port
B.Commercial area
C.Berth
D.Roadstead
最新試題
All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.
A vessel proceeding along a narrow channel shall（）.
When pushing ahead，wires leading from the quarters of the after outboard barges to the bow of a towboat（）.
A vessel proceeding along the course of a narrow channel shall keep as near to the outer limitof the channel which lies on her starboard side as it is safe and practicable.Which one of the followings does the statement express?（）.
In most cases，when a large merchant vessel enters shallow water at high speed the（）.
A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is（）.
As the weather was worsening and wind force rising to 8，my vessel（）were yawing within forty degrees of the compass.
When operating in an area where sea ice and icebergs are present，which statement is TRUE? （）
Topside icing that blocks freeing ports and scuppers（）.
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.