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2?????600
3??????????
4???????????
5??????
??????????????????6??20? ?,?????????????,??10???????,????????????,???
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??????10??(6??10-19??),???????????????????????????????50~120??,?????????????????????????????????????????150~300??,?????400???????????;??????????????????30~70??????,????????????????????100??;?????????????3~8??,???????1????????;????????????????????????????????????????
?10?????,????????????????????????????4~7?????35???,?????????????????????40~42??
??10?????????????????:???????????? ?
?10????(6??20-29??),?????????????????????????????50~120????,????????????????????????????????????????????150~200????????????,?250??;????3~7????????????????,??1?????????,??????????????????????????15~40????,????50~80?????????????,??100???
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20????,??????????????????????????????????????????????????????,???????????;?????????????????
21-24????,???????????????????????????????,????,??;????????????????????
24-25???????,???????,?????
27-29??,???????????????????????????????????????
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?11-14?(6??????30??7???3???),?????????????????????????????????????????????30~70?,???????90~130?????????????
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1?????
????????????10????????,??????????????????????35????????
2??
??????????10?,???????????????????????????????
3?????????????
?10??,??????????????????????????,???????????;??????????????????,???
4???
????????????10????,?????;23????????????,??1????
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