[填空题]
The Moon orbits the Earth such that the samerk )/gram .va* ;8w*b cdipqm(1o1wil side always faces the Earth. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Ear;wd(*woc pm1lii8 q 1bth.) $\times10^{ -6}$