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??????,??????????,??;?????????????????????

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