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