????:1???????:??????

2??????????????

3???????200??

4?????????

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

???????2??11????????????(?? ?????)2???11????????????????,????????,?????,?????,??????,?????????????????????????????????

????????????,??1?,???????????,?????????????,???????????????28????????????????????????????50%?????????????????????????,??,??

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???????????????????????,?,?????????????????????,??,????????49.9????????,????????????,?,????(????????????)

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