???????????????????1????20? ??

??

?????1????????20???,????????581.7???????1??20?300????,?382?????????????????????(????????243?,??????139?)?????????352??????91?????????,1???20????,???(???????????????)?,??????????24?????????????

???????,?,??1569?,?????????????261.60????????????????????????,???,?????,???,?????1????????20?,???(?? ?????????? ??? ?)

???????:??????????????????????

?????????

????????????????????????1????20? ???????

????????