??????????????????????6??15??????????????? ?,??????????6?15???????????????????18??????????????????????:?????????,6??15????20??????????????16?20??,???(?),???,????(???????????)???,?????????

??:??? “????150?”????

?? ??????:??????????????????????

????:1?????150?:??????????

2???????

3?????????????

4???????

5???????????????

??????????????????????6??15??????????????? ?,??????????6?15???????????????????18??????????????????????:?????????,6??15????20??????????????16?20??,???(?),???,????(???????????)???,?????????

??:???