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

2?????????

3??????????

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

5????????????

?????1??5?? ??????,?10????????(1?????????????5-14????????????),?????

????????10??,??????????????????,????2~8?????,??????????????????????????????????15~25?????

??10????????????????,????????????????????,?,??????????????????2~3??????????????????1~2??

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

6-9????????????????????,??????????????,??4~6???????????,????????????????????????????????8?????????????????;???????4~5??,???????????6~8??????

6??????-9??,????????,???????????????????????,?????,???????????????????,????,?????,????????????????????????????????

10-12???????????????,???????????,?????????????????????,??

??????

????11-14????(1????????15-18????????),??????2~5??????,??10??;??

??11-14??,????,??????????????????????????????????1~2?,?????????,?????????????????????????????????????2~3??

???????????

1.?????

6-9????11-12????,???,????,?,??????????????????????????????????????1~2??

2. ????????

6??????-9?,????,?????????????????????,???,?????????????????????????????????????????,????????????,??,????????????????????????

3.????

5-7?,??????????,??;??????,???????????????1km???????????

?????:??