?? ???????5.2???????? ???
????:1??????150???:?????150??
2????????
3??????????????
4??????????
5?????????
?,1??30??10?11??(???????????????????23.25??,??????????????120.57???????????)??????????????5.2????????????,?????????????????10??
?????????,???
????????,???????9?,?????
???,???,?????????????,?,????????
(???? ????????? ?????) ???:???