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?????2??????????????????????????????????????6?? ??:??????????5?????????????,??,?????,????????????,???????????100???
?????????,??????????????5??????????,??,??????56.5???,??????4.5??????????????,????????200?????????,???????????????????????
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?????????,???????,????????????,??????????????????1000????????????,??100???????????,??5??,????40%????????????,???3000???3???????????,????????????7000??????????????
????,??4?,?????25???,?????????,?????????????,1????????????????3???,105????????????????(?100????)?176???
????,????????????,?????????4????????????(????????????????)?????????????18???????????,??????583???????????????(????) ????:?????