A.total number of observations
B.average wind force on the Beaufort scale
C.average wind force in knots
D.percentage of calms
您可能感興趣的試卷
你可能感興趣的試題
A.equal to the longitude expressed in time units
B.about 16 minutes
C.the difference between the GHA of mean sun and the first point of Aries
D.15°of arc
A.radar conspicuous beacon
B.circular radiobeacon
C.radar transponder beacon
D.radar calibration beacon
A.deviation
B.annual rate of variation change
C.precession
D.compass error
A.newly edition with up to date correction and in reasonable prices
B.the current edition and incorporate the last Notices to Mariners correction
C.the current edition and incorporate the latest Notices to Mariners correction at the time of sale
D.brand-new one with up to date correction and clean writing
A.C
B.Cl
C.Co
D.c
最新試題
Charts showing the coast of Mexico are produced by the United States（）.
The maximum difference between mean time and apparent time is （）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
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（）.
A chart position enclosed by a square is a（n）（）.
Every chart is liable to be incomplete（）.
Which chart symbol indicates the bottom is clay（）.
Which information does the outer ring of a compass rose on a nautical chart provide（）.