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2??????92??95?

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5???????????

?????? ?????????????6???25???????????????????????18????:

6???????17??,??????????,??????????????????????????????300~560?,???????????600~790?????????????????,6??25??27??,??????????????????????????????????????????????????,??,????????????????????????????????????????????????????????????????????,?????,????????????????????????

????,6????25????20???????26???????????20??,?????????????????????????????????,?????,???????????????????????????????,??(250~260?)???(???????30~50????,????60??????????),????????

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