?? ???????????1.7???????? ??2.6???
????:1???????:??????
2??????????
3??????????
4??????
5??????100????
????,?1.7?,?????????6.3??????????????????1?10???????,??????????????????????????????????????????????????????????????????????????2.6?????
?????????????????,????,????????“????????”,??,?????,????“????????”?????“????”?
?????????????? ??:“??????”?“??”???,??????
??????????,??“??????????????”???,?????1000??????????????????????????,???,??“???????????????”??????????,???
??,????????????????,?????????????“????????????????????????????”???????????“???”?????,??????????
?????????????????? ???????:???28.6??,??????700?,??????????????8500??,?12??????????(???) ???????????????????:???????