???????????????

??

2????????????10?????????????????????,???,??????????????????(???????????????????????????????)?????????,8???,???,????,??????????

????????????,?,?????????3???????????????????????????,?????????700????????????????????????????????,???????98.2%?

??????(???)?????8??????????,???70???52?????????,???20?????????

???????????,????2????20???1????????15?????,????????????????500?????????,?????(?? ?)

?:?????????

?????????

?????????????????????????

????????