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

2?????80????

3?????????

4????????????

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

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6??????????30??,????????? ????? ?

30??????????????????????,??????????????,?????????????????,???

????????,?????????????????????70%,??30%?

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“????????????????,?????”???????,???????????????????????????

?????,?????????????????????????????????5?????,9???,18???

?????11???????“??????????????”??????????,4???“?????????????”?

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