?? ????????? ?????
????:1???????:????
2???????????
3??????
4???????
5???????
????9??28? (?? ??)??28?,??,???????
???????24?????????????????????????9??????????28??15?????50??:9?????????28??20?29??????20??,??????3?????????(??50~80??),?(?120~150??),??????30~60??,?????
??????????????????????9?28?15??40??,?,9????28????20?10?1??20??,?,??????7-9?,????????????????????????????????????????????????9?????10??????????????
?????????????????????????28??15??30??:29????????08??30??????08??,?,???????????????????????????????????????????8???????????????????????????????????4?5-7??,??8??(??)
???????????:???