?? ??????????????????
????:1????????:?????????
2??????????????
3??????????
4??????
5????????
???6?30??????(?????)6?????30?????????????,?????????2???????
??????6??30?16????????????,?????16.90???????????0.20??????,?14.82?????????????????????0.42????????,???????11.56???0.36????????????????????,??10.42?????????????0.42??????????????????19?????????????
???????????????????,?????,??????????????????????????,?24???;?,?,?;?????????,??(?)
???:?????????