??????????12??????????5??????? ??,????«?????????????????»?12??????????5???,??????????????,?«??????????????????»???????????,???????????

???????????????,?????????????????????,????,????????????????80%????????,???????96.6%,??18.9?,??,?????????

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?? ??????????????:???80%????

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2????????

3????????????

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

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??????????12??????????5??????? ??,????«?????????????????»?12??????????5???,??????????????,?«??????????????????»???????????,???????????

???????????????,?????????????????????,????,????????????????80%????????,???????96.6%,??18.9?,??,?????????

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