?????????????

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

???8???????7?? ?,????8??????????????????7??10?:??,8?7??????14?8??14?,?????????????????????????????????????????????????????????????????????????,?,????(100~130?????????????????)???(????20~50??,?????80?),??????????????

????:?????

????:

1???;

2???????????????????,????;

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

4???????????????,?????

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