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?12?27??????????? ?????27?,27????,????,????????????????????????????4~6????????????27??????29??????,?,????,27-28??(?????????????????20~25?????,?30????????),??????5~10cm??25cm?,29?????????????,????????

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27????????,?,????????????????????????????????????????????4~6???????????,12????27??08??????????????????????28??????????????08?,????????????????????????????????????????????????????????????????????????????5~6?????????????7~8??,????????????,????????9??????;??????????????????????????????????????????????????????7~8????????????9~10????12????27??????06??????,28???30??????,????????????????????4~6?????,??7~8?,??9??

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27???29???????????,??,????,27-28??(?20~25??????,???????30?),????????5~10cm???????25cm???,29???????,???????????????????????

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12???????????27????08?28?08????,???????????????????????????,????,??,????(10~19?????)?????????????????????????????????????????????????????????????????????????????????????????4~6??????7~8???

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12????28?08??29?????08?,?????????,?,????(10~19????)????????????????????????????????4~6????????????????7~8?????;????????????????????????????7~8??????9~10?????

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12?29????08???????????30?????08??????,????????????????????????????????????????????,??,????????????????????????,??????(10~15?)?????????????????????????????????????????????????????????????????????4~6???????7~8?;????7~8????,??????9~10???

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