?? ????????????? ??????????25???
????:1????????:???????
2???????
3????????
4????????????????
5??????
???????????????????????12??21??????? ??????:??20????,????(?)???????????????????????
????????????????????,??????,??????????????,?????????????????,?????????????????????
?10???28?????,????,???????????????????????
??????????????????????????20??,??????????????????????????,????????96%?????????????????????????
???,??????20????????????25???????????????????
????????????????????,???20???8?????????????????????,?????????????????????10??????????????????????????,????????,??????????????????????7????,??????6??
????????20?????????,???24????,???77??
??????????????????????16?????,????????????10???,?????????????????????????????4.5?????????????,?????????(?????)??????19??????????,????????????,????????(???) ??????????????????????????:?????