[填空题]
The Moon orbits the Earth suc*bf rgx,y r3j6*c4a tah thab 8rb :fqjv.fs se0g8.t the same side always faces the Earth. Determine the ratio of the Moon’s spin angular momentumr8ff0 js.:eb.s g bvq8 (about its own axis) to its orbital angular momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$