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??9??????25? ????,??????9??????26?10??1??,??,????,26?27?????????,28??????????????

?:26???10??????1?????????????,?6~8?,???????????????????10??,??????????????????????????????????????????????14~16?,???16??;??????,?0?????????????????????????????????4~6????,??7~8???????????,????????????????9~10???????,??11??;??7~8???????????????9~10??????????????????????,????????????????????11???

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?????????:27???????????????????29?????,???????????????????,???

??:28?30?????????,????????????????????,??????????????????????????????(?????50~70??),????????????????(????100~200??????????)???????????

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??,9?????????26?????????10??1??????,??????????????,????????????,???????????????;27??????????????29??,????,?,??????????????????????????,28??30?????,?????????????????????????????,?????,???

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