?? 28?? ??“????”?????“??”????
????:1???????:???????
2???????
3?????????
4???????
5??????
?????,???????????,?????????????????????????,????????????……??????,??28?????
???????47??,???????????????????????????????19??,????,?“???????????????”,??,??“?????????”???????0.001???????,?????????????,“????????????”????????????????,???????????
(??????????????? ??? ?????????)
?????:????????????