?2???????????????????14???????? (?????????? ????)???????????14?????????????????????,????2???8????,??????????????50?????????????????13??????????????,?5.3?,???????????????????75%?

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???,????????,????????????????????????

??????,??????????770????,??1???10?????1????????????22.5????????6?,????????????????????????????????,?????????????????????

??????,??????????????????,??????,?????,????

????????,????????“?”????“?”??????????

???????????????,??????????3??,?7500?????,?????95%???,???????????

????????????,????????96.8%,???????????????2.2%,?????1%,???????

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