???1.7???????? ??2.6???????????

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

??,?1.7?????????,??6.3??????????????????1????10??????,???????????????????????????????????????????????????????????????????????2.6??????

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??????????????,????“??”????,??1000??????????????????????????????????,?,?“????????????????????????????”??,?????????

????,?????????????,??????????“??”?????“?”??????????????,???????????

?? ???????:???????28.6??,??700?????,?8500????,??????12???????(??) ??????????????:?????????