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

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

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