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

2????????

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

5???????

?????????????????,??????????,??,????????200???????????,???????“???????????”??????????????“???????????”,????

????????????,?,??????????,?????,????????

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

???? ????????:??2000??????????????????2200????,12????13??????????????????15%?20%??????

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????????? ???:??,??,????????????????????????????????

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???????,????????“?????????????BA”?????????????,?????????????,?????????15?????????????????,???????7.8%?

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