????: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??????

???:???