????:1???????????:????????

2??????

3?????????????

4?????????????

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

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

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

“???????????????????????3??????,??????7500?????????,????????????95%?”????????????????,?????????????,????????????,???????“????????”,????,????,??????“??????”,??????????????????,?????????????????????????????,??????

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