????????????? ????????

???2??????7?? ????????????,?(2????6??????),????,????????????????????????????????????????6~8??,??9~13??;??????????????????????????????????????????????????????????????????8????????8????,??????????????????????????6~8??,??????12~16????????????,?????

?(7?8????),?,???????????????????6~8???????,???????10??????;???????????????4~6?,??????????????8~10?,????????????10?????

?????,7??????,??5~6????????7~8??????,??????,????????9~10??;????????????????????????????????????????????9?????????????10~11???8??????,????????,????????

???

7?????????,??????,???????????????????????

??,7?????????8???????????????,?????????????????????,???????;?????????????????????????????,?7?,????????????????

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