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2?????

3??????????

4?????????????

5??????95?98??

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?4×100??????????????,??????????????????????????????3????????????????????37???????????55,?????????????????3????????37????????43?,????,????

???8????????????3????????????,?????????4x100???????,?????????????????????????????????????????(?????????)??????3?????????????????37?55??,?????????????????

?????????,??????????????,???????????,?100???57???82,????

?,???????????????,?????????????,????0.12?????

??????????????8?????????3????????,?4x100?????????????????,?????????????????????????????3?????37??????55??,????????????????????????????

????????????????,????????80?,?????????????,?????

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???100?????????????????????200????,?????????????,???????????,????,??

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????4??????????????????,?????????,????????????4×100?????????,??“?,?,??”(?????????????)

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