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3??????150

4???????

5?????????

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???????7??????????????????? ??

??????,???????????,????????????????????????????,?????????????????“?+??+????”????“1+7+N”?????????,??????????????

????????????,???75???????,??“??”??????,??,?????????7??????????????5??“????????”??,??1??????????,????,?????????????????,?????“?????100??”?

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?,?????10000??,?????????????????????,?????????10000????,?????????????“????????????”?????,?????????????????“??”???????????,??????????????300?????????“??”???????????(????)

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