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

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

??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??????????;??,?????????????,???(???) ???:??????????????????????