????????????????,6???18??8???????????????56??????,??????????????,?????10??20???????,????????,12???28?,????2??

??,??????????,?????????????????????,?????????????,??

(???????????????? ???????? ???) ?????????????????:?? ??“?????”

?? ????? ?2??????????????

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

2?????????????

3??????????

4?????

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

????????????????,6???18??8???????????????56??????,??????????????,?????10??20???????,????????,12???28?,????2??

??,??????????,?????????????????????,?????????????,??

(???????????????? ???????? ???) ?????????????????:??