??
??????2??11?????????? ???????????,????????,?????????(11-12???????),???????,????4~6?,?????????8?,??10?????;????????4~6???????????????,????????????????????????????????????????????;??????????
????,???????????????????????????????????????,????????????????????????,???,??????????????????
????,????,???;????????????,??????,??????12???????,?????????????????????????????????
??????,??,????,???????????????????,????
???:??????????????
??????????????????? ???????????????????????