?? ????????,?????????????
????:1???????????:?????
2??????????
3???????
4???????
5????????
??????(?????????????? ????)????????,?????????,????????????????,??,???????????????????????????????,??“??????????”?
???????,??????,11???????24????,??,???,???????????,???????????????????????????????????????????25????9??,????????????????
??,???????????,???????,?????2????,???
????????,?????????????????,??????????,????????????????
????????,11?24?23??25??????7????????,????????????2.6?,??????????????????????????2.9??????,12?????0.1???4.9????,?????,?????,????????
?,?????,?????????????????,???????????,????
????,??????,???,?????,“??”?????????????,??
?????????????“????”?????????“???????”????????,??????,????????????:???????????20??????????10????5???????(??????????????????????????????????????????????????)??,???????5???3???????????????,???1??=0.1??????
??????,????????????,???????????,????????,???? ?????????:???????