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2?????????

3??????????

4?????

5??????????????

7??????????????6??????????3???,?????????????????????,??

?,????6?12?????????,???????????????????????220??,???????5????????,???47.64????????????????????(?92.5%,?),???0.10????

???????????,????4????,????????????????????????????,????????700????????

??,????????????????,???????????????????????????,?????????????????????????????????????????????????????1000????????3200????3200???????3200????????????????5000??(????? ??? ?????? ? ? ?)

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