[填空题]
The Moon orbits the (y)rj*zs,w30a k udf rcry,9sEarth suchbq,z82/z,bszi d8x m s that the same 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 particl,q8/s xs 2dzbzm8 bz,ie orbiting the Earth.) $\times10^{ -6}$