????:1???????:????90????????

2???????

3??????????

4?????????

5?????

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12?????15?,????????????????????????????????????????

16???19??,???

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8?????????????????????11??8???????12????8?????????????????????,????????????????????????????????????????????????????,?????????????????,????????????????????????????????(100~130????????)?????????????????4~6?????

8?????????12?8????????????13???????????????8?,???????????????????????????????????????????????????????????????????,?????????????,?(50~80????????)??????????????????4~5?????????????

8???????????13????????8?????14??8???,????????????????????????????????????????????????????????????????,???????,??????????????????(50~80?)??5~6????? ???:????