????: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?????

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