A.on a regional basis
B.on a national basis
C.shown orderly
D.appeared from A to W
您可能感興趣的試卷
你可能感興趣的試題
A.very rare
B.common
C.often
D.reasonable
A.SW of Cocos Islands
B.oceanic dangers or seamounts
C.undiscovered dangers
D.the continental shelf
A.a small error in bearing or in laying it down on the chart has a greater effect in misplacing the position the longer the line to be drawn
B.all scales are kept updated for vital information by Notices to Mariners
C.the larger the scale of the chart，the greater the detail that can be shown on it
D.the mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances
A.1 minute of longitude
B.1 degree of longitude
C.1 minute of latitude
D.1 degree of latitude
A.the final judge of the reliance the mariner can place on the information given
B.its immediate importance cannot always be verified before promulgation
C.through imperfections in the survey on which it is based，or subsequent alterations to the topography or sea floor
D.deferring the promulgation of certain less important information
最新試題
The soundings on the chart are based on the depth of water available at （）.
What information is NOT found in the chart title? （）
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
Which information does the outer ring of a compass rose on a nautical chart provide（）.
The survey information upon which a chart is based is found （）.
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
The path that a vessel is expected to follow，represented on a chart by a line drawn from the point of departure to the point of arrival，is the（）.
（）is not a position-fixing system.
When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?（）