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2?????

3?????

4?95????????

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

?????????12?20?? ?,???????,???????????????20?????21????,?,??;????,?????????????;??,?????????????????

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20????21????????????????????,??,?????????????????????????????4~6?,??2~4?,?????????????,??????????6~8??

?????12?20????6????:??,12?????20??????08????????????21????????08??????,????????????????????????????????????????5~6?????????7~8??;??????????????????????????????????????????????????7~8????????????????9??

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12??20?8?21??8????,?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????4~6?,????7~8?????

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12??21????8????22??????????8?????????,?????????????????????????,??,?,?????????(10~13????????)??????????????????????????????????????????????????????????????????????????4~5??????;?????????????????????????????7~8????????????????????????9~10?????

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12?????22?????????????8?23??8?,????????????????????????????????????????????????????????????????????????????????????????????????????????????????????4~5????;?????????????????????7~8??????????????9~10???????????????????????

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