?? 3????????????????1.6???
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????:1?????98?:??????????
2?????????
3???????
4?????
5?????????
???3???????????????????1.6????????????????????????????
???9????????????1???? (? ?????????)?????????????????????3???1???,?????????8?31??,?,?(?????????????????????)??1.6??,?????54%;??,??74%?
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?7????19??,?????????????????????,?,???????????????????????????,???????????????????????????,7???????????????19?????????????8??31?,?1400??????????,??????????50%,?56%?(?)
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