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????:1????????????:?????
2??????????
3???????????
4???????
5????????????
??????????????????????????????????????11??????????2? (??????? ?????)??????,????2??16??,??2?16?????30??????????????
??,2????????~4??,??????,???????????30???????????????????????
?,??,???24??,??????????????????????????????????????????????????7???????????100-150????;????????????????????????????????????????????????????????????????????????????8??50-80???
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