?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??,??????????????????????????????????????(??),????,??????????(?????)??,?????

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