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2?????200??500

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4???????

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?????????????????2??21????? (?? ?? ?)??,?-??????????????????(???????????????“??”)????????

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??????????????????????????????21???????????????,?????????,???????????????????,?,?????????????????????????????2?????????????20?,??200??????,???????????????800????????????,?????????????900???

“??15????!??,???????20%,?30%?”??,??????????????????3?????????125????

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??????????,????1838????,????????????22155??“??”??“????”???

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?,???,??????????????,?????,????,?????????????????????????????????????????????????????100????????????????,???????????????????6000????????????????????????,??????????????7000???(??????????????)

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