?? ???????????????????:1?????5?80%
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2?????150????
3???????
4????????
5???????
??????????????????????????6?????????????18?6???????????????,????????????3???????????????????,????????????????????????,???????????????,7??????????????4???????,31???????????(??????????????????)?????????????????????????????1-5???,??17.5%,??50%;1-5?????,????????????80%,?????????,?,????????(?)
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