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

2?????

3?????????

4??????????80

5??????

??6?????????????20???????????????????? ??,????6?20?10???:??,6????20?14?21??14??????,???????????????????????????????????????,??,???????????????(100~130?????)???(????????????????????????20~50???,??????????60?),??

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

1??????????????????;

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

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

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