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

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