??
?2??????????3????????????????? (?????? ?)????????,????????????????,??????
?,????????????????????? ???????????????????,????????????????????????????????????????????????,?????????????
????,1????28?0?????????????2???????????3??15???????,??????????????????2.6???????????????,??????44%,?????????????,?????85.7%,????????????????8.3%,???6%????????????,??,??1400???
???,?????????,???????????????,?????,??,??(???)
??????????:????????????
????????????????????????????????????