[单选题]
The Earth orbits the Sun in, xfdx g0h*0sb an elliptical orbit. Ignore any fricti,: klcvqwcqx6 m8.+lron which may be present. What happens over time to the. 8,6cckvm xlr+qw:lq Earth's angular momentum about the Sun?
A. It continually increases.
B. It continually decreases.
C. It remains constant.
D. It increases during some parts of the orbit, and decreases during others.
Post time 2024-1-22 02:51:16