?? ???????????? ?????????
????:1???guan???:????
2?????
3??????????
4???????
5???????
??6??30?? (???????)?30??9????????????24?????????????????????????????????????????,?????????????????????????????????(120~160?????),??(??30~50???????,?????60??????)????????????(8?)???
29????20??????????30?7??????,?????????????????????????????????????????????????????????????????790??50??,???18.9%;41????100??,??1.0%;??????150.3??
?,30??;????,????,???(???) ???:???