?? ?????????? ??????????
????:1??????:???????????
2??????
3?????????????
4?????600
5?????
?????????????6??18????? (?????????????????????)“????????????????????????,??????,????????????0.1%0.2%????????,0.3%??????,????????,???????……”
18?????????,??
6?????????18????????????????????,?????????????????????,???8????????????20??????,??????????,??,?????????????????????????10???????????????????????????????,?????,?????????????????,?????????
????????20??????????????????????????????????????????????????“??????????,?????????,???????????,??????????”???
???,?6???17????????????????,?????????????,??2.59?,??????533.7??,???????????3621.52??????
?????????,??????????????,????????????,?????????????,?????????,??
?????????????????????????“??,??????????,?????????????????????,?,??,???????????????????????????,????,????????????????????????”??(????????)
?????????????????????:????????????????