?? ????? ?????????
????: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???(??????)
???:??????????