Elongation becomes zero at().
A、opposition
B、west quadrature
C、apogee
D、inferior conjunction
A、opposition
B、west quadrature
C、apogee
D、inferior conjunction
A、superior conjunction B、inferior conjunction C、opposition D、None of the above; the elongation will never be zero
A、A.drops and winds become variable B、B.rises and winds become gusty C、C.drops and winds become gusty D、D.rises and winds become variable
A、at elongation angles near 180° B、from quadrature to opposition C、at conjunction D、at opposition