[填空题]
The Moon orbits the Earth such that the s;a4p-yqrh-gb am0 qvz)) dc ev70b0dwgjrp8 p(de side always faces the Earth. Determine tzd0)g8ebqp)ddr0jp wvcv(0 7 he 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 Earth.) $\times10^{ -6}$