????:1?????????499:???????

2?????300?????

3???????????

4??????

5??????

??????????????11?22????? ????22?????????????????,???????????,?????

????????????????????,?????,??????????????29????,?????????????????????15???????????,???

????????????????????,??????,?????,??????????????????????????,????????,??????????????818.6?????????????,??????????48.8%;???,???????????????488.5????????????????????????,?????78.6%?

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