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???8???????????????????6?,?????????????????????????????????,?????????????????????????????????,?247?,?40~75??;??????????,??????????(50~80??????);???????????????????????????????????8~9??????10??????
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???????,????????????????35~38????????,??39~40.5??
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(1)?
????????????????????6????9?13??,??????????????????????,????3~5???????,????,?????????????????????39~42??
????6??????9??,??????????????????????????????????????????????????35~36??,?????,?????????????????????????37~39?,?????40???????????6????????????9????06????????
????????(6??????9??????????????????08??-20????)
(2)????
9????12?????,?????????????????????????,?????,?????????????????????????????????????????,?;9?,????,????????
??,13????????-15?,???????????????
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6??9???????08???????????????10???????????????08??,?????????????????????????????????????????????????????????????????????????????????????????????,??,?????????????????????(50~90????????)??????5~6????????????
???????(6????9?????????????????08??????????????-10????08?????)
6????10??08??????????11?????????08??????????,???????????????????????????????????????????????????????????,????,??????(50~90??)??????????4~6??????
??(6??10??08?-11?????????08?)
6??11?08??12???????????????08???????????,?????????????????????????????????????????????????????????????????????????????????????,????,?????????????????????????(50~90?)?
????????(6??????????????????11??08?-12?08?)
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