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

2??????

3??????

4?????

5??????????

2???10?,?????????,????????????????????(????????????)???,8????,???,???,?????????

???????,????,????3??????????????????,??????700????????????????????????,???98.2%?

???????(???)?????????????????8???,??????????70?????????52???,????20??????????

?????????,?????????????????????2????????????????20????????????1??????????15????????,???500?????,??(??????????????????????????????? ??????????)

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