??? ????4.6?????????????
?2??4? (????? ????)?????????“???”“?? ????????”????240??,?????????????????????????4???,?????4.6?????????
??,??????????31????????2220??????,??16.6%?16.5%,??2550??????240????;???6????12?,?????1.5????,????45%,????8%?
???,??????????????????????????2100??????????,????????????,???????????????1634???????5.1%,????????160.1????????(????,????)??????42.9%?
??????????,????????,???????????????????????,“???????+”???,?????????,“??????????????”????,?????100%?
???,??,?????“??????????????????”?????????????????,????“????”??273????,???????????(???????????)20??????????????????,?????(??) ???:???????
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