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

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?????20????

?????????(?)�930�????????,?????????????,????,???11??????????10????????

?????????,11??????,??1.85??????,????????5.37????????????/??,????????????????8%????????2.8%?1.85??????????????????20???????????,11?????????????????????1??????????????????????????30??????,?????0.46???????????,????????????????????5.66??/???,???????????????3%??1.5%?

11????30???????,??????,??

�?10?????31????????????????,??,??????????????11????27??�???,????????,???,10?????11????100????,??????9???3?????????

??????????????????????,?????,11????????????????,?????,???300????????400?????

????,????,11????????????2.5%,????,???????????????????????,??????????????9?,11?,90???????6.6%,90??????????2.7%??,?????????????,11??,?????0.35????

12??1????????????,????,????2??????,????????????140???,?????????????1%?????????????????,?????,???(???) ?????????:???