????:1????50?????:?????v

2?????????

3?????

4????????

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

??????????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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