????7?2?????????????? ?????,???????????????????7?2???????10????:??????????????,7??????????????????2???????????14??3??14?????????????,?????????????????????????????????????????????????????????????????????,???????????,??????????(100~130?????)????????(?30~50??????,??60?),??????????

??????:

1??;

2???,????;

3???,?????????????,?????????????;

4?????????????????,????? ???:??????????????????????????? “?????????”_????

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

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

2??????zj

3???????

4???????

5?????????

????7?2?????????????? ?????,???????????????????7?2???????10????:??????????????,7??????????????????2???????????14??3??14?????????????,?????????????????????????????????????????????????????????????????????,???????????,??????????(100~130?????)????????(?30~50??????,??60?),??????????

??????:

1??;

2???,????;

3???,?????????????,?????????????;

4?????????????????,????? ???:???????????????????????????