6?8?? ????????9~10??????????

??????????????2?????????????????6?????? ??????,????(2?5????),????????????????????????????????????????7~9??,????10~13????????????????,???????????????

6?????8?????????,????,??????

?,????????????????????????6~8?,????????????????10?????;????????4~6?,?????????7~8?,????????????10???????????????8??????????,?????0????????,?????????8~10?,???12????

??????????,?????????,??4~6????????????????????7~8??????????,?,???????9~10?????????;?????7~8???????????9~11???6???

6??7????????????????,??????,?????????????????????????????????????????????????????????????????,6??????7??????????,?????????????????,????;???????????????

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