????:1????????:?????150????

2???????????

3??????

4?????????

5???????

??1???7????????????? (? ?)??????????7?(????????)?????????????,??????????50?,??,?????????

??????????50??????????????????

?,1???7?9???????5??(????28.50????????,??87.45????????)????????????6.8????????,??10???????????10??????????4471??

??,???(?????????????????????)?????,??????50??,???????????????,????????????????????????????????????,?????(??????????)

???????????????:???