?? ????????????? ???????????
????:1???????:???????????
2?500?3?????????
3?????v
4???????
5?????
??????12???????14????? ????,??????????,?,????????????????14?,???????????????????????????????????????
?????? ?
?8????????6??, ?????????????,???????6~13????????????????????????????????????????????????6~8?????????9~10?????????????,?????????9~12???6??6??????????????,??????????????????????????4~6?,?8~10??????6?????,0??????????????????
?
?,??,??,?????,???,12?14??08?15??08??,??????????????????????????????????????????7~8???9????????????????????12??14?06?????
????(12?????14????08????????????-15??08?????????)?
14?????????,???????????????????????????????,?;?????????????????????????????15?????????????????16???????,???????????,??????????,??????????????
?,18-19????,??????,??????
19-21???????,??,???????4~6?,?4~6?????
??
12????14?????08??15?????08?,????????????????????????????????????????????????????????????????????????????????????????????????4~6???????,????7~8???
???????????(12??14??????????08???????????-15??????08????)12?????????????????15?08????????????????16??????08?,???????????????????????,?,?(5~7?)???????????????????????????????????????????????????4~6??
??????(12???????????15??????08?????-16?08?)12????16??????08???17?????????08????,????????????,?,????????,??(10~14????)?????????????????????????????????????????????????4~6????,????6~7??
?(12????????16???????08????-17??08??????) ? ???????????:??