[单选题]
The acceleration of ;9w;bh. n ya m0xmph5 zwfd5q:gravity on the awou ; s:rnn5ch7l-ahtr g.q*83gn 4o Moon is one-sixth what it is on Earth. The radius of the Moon is one-fourth that of the Earth. What is the Moon's mass compared to the Earth'slqn:n4w ah * r.ongou5ats-8hrc 7g3;?
