?? ??50?? ????????????600????
????:1????????????:?????????
2?????
3??????????
4??????????
5?????
????11??????????10?? (??? ????????)???2?????10???????????????????????(???????)???????
??????????????????????????????????????????????,?????????????????????????????????????,?????21?????103???????81???????????????2600???????
?????? ?????????????200???????????????????????????,50????,?????????600????????????????????????????,??????,????????????????????????????????????????????????????,??????????,????????????????
??????????????????? ?????????????,???????????????,????????????????????????,?????????????????
????,??????????????????????????????????????12????????,??20???????????“????”??
??,???????,????????5?????207?????,??5000??????????????????????????,????????????4000???????(??)
????????????????:??