????:1??????:????

2???????

3???????????

4??????????????

5?????

??8????????????13????????? (?????)13??,????????????,13??12???40????????????,??????????????,?????820???

13?12??40????,????????,?????????10??????,?2.5??????????

?,??????????????,??,??????????2???????112???????????????????????????820???????(????)????????????????????,???????,???????7000??

?????,???????????????,???????????????????8??????????????????????,????????????????????????????

??????,?,??,??????????????????????????????????????????600??????????????????????????,??100?,??20????????????????????(?) ???:???????????