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

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

???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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