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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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