???????????:??????? ?????

??????????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?,????????????????????????????????????,????????????