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

????????????????:?? ??“????”

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

????:1?????:????

2??????????

3?????????

4??????????????

5?????

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

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