????:1?????:????600??

2?????????

3?????????

4???????

5???????????

???:?????12????????????,???????????????(12????????????1??)??????,????,??

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??????????????????????????????«???????????????»12??????????1?????,«?»?????????????????,??????????;???????????????“????”?????

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12???1???????????????????,??«???????»???«??????????????»??????????????????????????????????,????“????????????”“?????”??????????????????????????????????:???????????????;?;????????????????????????,??????

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?12????????????????????1????,«?????????????»????,?????????0.5??????????????????????????????,?????,??1.5%,????????????1%,???????????????0.5%(??????????)?

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?????????????????????????«???????????????»,???????????12?????????????????????????1??????,??,?20%???????????????

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