[填空题]
The Moon orbits the Earth such that the same side al cj2sc/u;m fzn.h7r g9-vg0z kways faces the Eartj -7a(pdop(r obg9ch/h. Determine the ratio of the Moon’s spin angular momentum (about its own axis) to its orbital angula/gc-hod pr7jp ( a9b(or momentum. (In the latter case, treat the Moon as a particle orbiting the Earth.) $\times10^{ -6}$