??2?????17???????????? ??????,????17???

???????10?(2??7-16????),?????????????????,?????

??10??,?????,????1~2?,????????????????????????3???????

?10?????????????????(2?????17-26????????????),???????????????????????????????????10~30??,???????????????????????????40~80??????????????????,?????????100???????,?????????4~8??,???

??:???????

???10???????,????,???,????????????,????????????????1~2??

?:????

17?,?????,???????????????????????4~6??????????????????????????????????4~6?????7~8????????????????;?????????????????????7??????????????8??????????,????8???????9???????????

17-23??????????,?????????,????????

??11-14????(2?27??3??????2????????????????????),???????????????????5~15??????,??????20?????;???

??10????????????????,?,???????????40~80??,?100????????????,?????4~8????????17-23?????????????,????????????????????,???????

??:?????

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