??????????????????????????,???????????
????,??????????????????棗?????????,??????,???????,?????????,?????,??????????????
???????,???30~40%??????????????????,???1????
????,??????????????????,????????????,???????????????????????
????,circulation???????,???????????18.4????,??13.3???????,4.5??????,6450?????
?????????????(nhan?????????es iii)??14.6??????,?????????????????????2??????????????????????
?????????????frank hu?????????????????,??????????1-2?,???26%?2??????;??35%?????????????;??16%?????????????????frank hu?????????????????,??????????1-2?,???26%?2??????;??35%?????????????;??16%????
????????(who)???,????????,??????????????????????10%??;?????,?????????????????????????????5%??
?????????????