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

2?????

3???????

4?????????

5???????

??2????8? (????????? ????)??????????????8???????????????,???????????????2??,????????????????????????????????????????????????????????????780??

????????? ????????? ?????

??,?????????????????????,???????????,???,???????????????13???????30?,?????????????,15?30???,?????

?,????,???????????????2?????????17??,?????????????????????????????????????????????????????

???8????????18?,????????????10??30?????????????,????????200???(????????????)

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