A.the height of the tide
B.depth of water under the bridge
C.charted vertical clearance at mean low water
D.distance from the water to low steel of the bridge
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A.concealed
B.buried
C.existed
D.built
A.one nautical mile
B.two kilometers
C.5 cables only
D.one fathom
A.a vessel arrives at a port in a evening
B.a vessel leaves a port in a evening
C.a vessel arrives at a port in a morning
D.a vessel leaves a port in a morning
A.by
B.with
C.on
D.in
A.cable areas
B.dumping grounds
C.fish trap areas
D.precautionary areas
最新試題
In Admiralty Sailing Directions，bands is the word used to indicate（）marking．
The height of eye correction is smaller than geometrical dip because of （）.
During a period of whiteout，you should expect which of the following（）.
The period at high or low tide during which there is no change in the height of the water is called the （）.
Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）
The Earth has the shape of a(n) （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
Areas enclosed by a long and short dashed magenta line indicate （）.
The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.
Attention is called to the fact that in many cases charted depths may be decreased by up to （）.