A line on the Earth parallel to the equator is a().
A、gnomonic curve
B、small circle
C、meridian
D、great circle
A、gnomonic curve
B、small circle
C、meridian
D、great circle
A、is nearest to the Earth B、is farthest from the Earth C、is on the opposite side of the Earth from the Moon D、and Moon and Earth are in line
A、at the start of spring,when the Sun is nearly over the equator B、only when the Sun and Moon are on the same side of the Earth and nearly in line C、when the Sun and Moon are at approximately 90°to each other as seen from the Earth D、when the Sun,Moon,and Earth are nearly in line,in any order
A、at the start of spring,when the Sun is nearly over the equator B、only when the Sun and Moon are on the same sides of the Earth and are nearly in line C、when the Sun and Moon are at approximately 90°to each other,as seen from the Earth D、when the Sun,Moon,and Earth are nearly in line,regardless of alignment order
A、At the start of spring,when the Sun is nearly over the equator B、Only when the Sun and Moon are on the same sides of the Earth and are nearly in line C、When the Sun and Moon are at approximately 90° to each other,as seen from the Earth D、When the Sun,Moon,and Earth are nearly in line,regardless of alignment order
A、A curved line drawn on a Mercator Chart B、A course line that inscribes a loxodromic curve C、The shortest distance between any two points on the earth D、The smallest circle that can be drawn on the face of a sphere
A、Along the magnetic equator B、Connected by the isoclinal line C、The isopors D、The magnetic poles