????????????:????

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??????12??????????????????20????????????????????(?????????????????????? ????????????)“???????,????????????,???”20????,???“????????????”(??:?????????????)??????????????????????????,?(??????????????)???????????????

??,???????????????????35.4%,????????????????????,???????????????????????,??,?????????

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????????,?????????????????4A??,??????????????,???????“???????????????”,?????????????????????????????????????????

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

“???”“???????????”“?????????????”……????,????????,??????????????,???????????????100???????????????,???

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

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“?1.5??,???????????????????????,??????,???????,??????”????????“?????”?????

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

??,???400??,???“??”??,??????“??????”???,???????????,??500?????????????,????150????????,?????????????60????????????,???,?????

?????????????????????????????,??,??????“???????”??,???????,??????(???)

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