?? ?????????:????? ?????
????:1???????:???????
2????????
3???100??3????
4???????150???
5???????????
???12??6??????????? ????,?????,?????,?????????;????,?????????????????,???????????????6????????????????,??????????????????????????????????,???????????????????????????????200????????
????????????????????,???????????????????????6????????????????8?????????,??,??2~4?,??6??????????????????;?????????????????4~5?????????????,?????????????6~8?????10????,????????,??????,?????,???,?????
??,??,????;?????????????????????????????????????????????????????,?????????????????,????????????????,???????????
??????????????:???