???????湥?? ????????????? ???????????????????

??????????????????????????

??????????

???%=??????/(100+??????+????????)

???????,??????????????118

???90????????????118/308=38.3%

???80????????????118/298=39.6%

???60????????????118/278=42.4%

???????????????????

1?????aoe???????Ч??????????С?????????????

2?????????????????????Ч??

3???????????????Ч??????(??????????100%??????????????????????????????????????????????)

4????????????????????????Ч??

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

6?????????к????????????????????????????????

7????????????????????????

8?????????????????????????Ч??

9?????????????????????????Ч??(?汾???o????)

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