?? ??????????!???14? ??????7?9????
????:1??????:???????-???
2????????
3??????
4???92?95?
5??????v
?? ?1????????????23?18?:
?????,?,1?????23???????????20??????1??27?,????8~12?,???????14?????,??????????4~6??,????7~9??;26????27????????????????,????????????????????6~8???,?9~11??28????,???0???
??????,1?23??20??1???????25?20?,??????????????????????8~10?,??????,??????????????????????12?????????????????5~7?????7~9??????,????????????????????5~7???????8~10???
????:
1.?;
2.????;
3.??????????????;
4.????????????
???:???