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

2???????

3???????

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

5?????wx

??????6??18??????? (?????????????????? ?????????)????,?????,6??????“???????????”??????????????,????,??1????????,??????????????????

?“??”?????????,??,??,???????15???????????????????“80????”????,?0.055%???????????????????,??????????,?????,???,??????

????????“????????????????????”??????????????????????

???,??????????34????????,?????????????,???????“???”??,???????????????????,???5??????????,?1.2%????

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

“??????????,????????????99%?????,?????????,???????1%???????????????”?????????,?????????50???????????,??1200????“???????????????1????????,??????600?????????????,????????????????”?

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

“?????10?????????10?,????,???????,??????,??????,??????????,????????1%????”???

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

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

“???????????????‘???’?????????????????????????????,???????????,????????,??????????,????????‘????????????’,??????????????”????,“????????????????”???,????10000???????????????????,??????????1600??,??80%,5000?????????

?????,???60??????????????,???????,??,????????????????????????????????????,????????,??????????,????????“??”?“?????????,???80????,??????,????????????????,?????????????????????”

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

????????????,????“?????????”?????,??????,???“???????????”??????????,????????????????,???,????????,??????????(????????)

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