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

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

3???31???

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

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

????????????11??22?????????????? (?????????????? ??)22?????????,??,???1000?“??”????????????……???????????????“?????????????”??????????????????,?????“??”?????

????9??????,?,??“???”,???1000?????

“‘???’???????????,??????????????????‘??????????’???????????????”????????

????,??,???????????????20???????,620??????????,????????????300???200????600????,???100???????????????????16?67????????????

??????,????15?,????????????(??) ????:???