In very high latitudes,the most practical chart projection is the().
A、Mercator
B、Gnomonic
C、Azimuthal
D、Lambert conformal
A、Mercator
B、Gnomonic
C、Azimuthal
D、Lambert conformal
A、easterly courses in high latitudes B、southerly courses in high latitudes C、westerly courses in low latitudes D、easterly courses in low latitudes that cross the equator
A、A.The two points are in low latitudes in the same hemisphere B、B.The two points are in high latitudes in the same hemisphere C、C.The two points are near the equator, but in different hemispheres D、D.One point is near the equator, one point is in a high latitude, and both are near the 180th meridian
A、in high latitudes B、near the equator C、on north or south headings D、on intercardinal headings
A、in high latitudes B、near the equator C、on north or south headings D、on intercardinal headings
A、increases in north latitude and decreases in south latitude B、decreases as DLO increases C、increases with increased latitude D、decreases with increased latitude
A、the declination is the opposite name to the latitude B、the algebraic sum of the colatitude and declination exceeds 90 C、the observer is in high latitudes above either polar circle D、the body is circumpolar
A、Vessel's Hoisting Flag B、Very High Safety C、Vessel's Homing Frequency D、Very High Frequency