?? ??:?????????????? ?????
????:1?????????????:????
2???100??????
3?????????
4??????
5??????wx
?????10????????????????????????6???? ??????????,?????????????????10?5?????,???«??????????????»(????????)???????????
??:?????,???5???,??????????,????????,???????????????????0.14%,????????(0.08%??)?
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????????,????????????8???????????????????????????,??????????????????
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