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

????:????vx:?????

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

????????????????????????? ??????????

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

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

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

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

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

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

????????,?????,???????????????????,?????????????????,???,??????????????????(?????)

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