?? ??? ???? ??? ???“????”????????
????:1?????:?????????
2???????
3????????????
4?????????
5??????????
??:???????,??????????????,?????????????
????????
10???????????28????????????????,????????,????81.52????????????????,????250??????????????????????????????????,???????4??????1????
????
10?????????????27??????????,????????????????????1000???????????????,???????10????????????????,???????????????????
?,????????????????,????????????
?????????????????????????,????69??69??,??????????
?1000?,?????????????????????????????,???,????????
??
10??????????28??,????,??????????????,????????????????,?????????????10?????????,????????,???????????????6???????????
??????????????????500???????????????
??????????????????500????????10?28?????????????????????????????????????????????“????”?????????????????????,?????500??????????????,????,????? ???????????????:??????