[问答题]
When you look at you*p,f2m 8x;* . remwdlsf6iqxu ri 5er r;b,3rtfself in a 60-cm-tall plane mirror, you see the same amount of your body whether you are close to the mirror or5frr t ibr,;3e far away. (Try it and see.) Use ray diagrams to show why this should be true.