??
??????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??,????????
????????,??????????????,?????????,????,????????????????????????????????????????????????,??????,????????????????,????????????????????????,????????????,??????????,??,??????
?????:??????????????
????????????? ????????????? ?????????????