[填空题]
The Moon orbits the Earth such that the sa wyzzk -7s;-y4v2s4gu imedg,me side always faces the Earth.nn9 w(zp/+w7dw uts7s Determine the ratio of tp7 /z7 9s +suwwdtn(wnhe 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 Earth.) $\times10^{ -6}$